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Graphene patents

      

This page is updated frequently with new Graphene-related patent applications.

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Lithium ion battery anode containing silicon nanowires grown in situ in pores of graphene foam and production process
A process for producing an anode layer, comprising: (a) dispersing catalyst metal-coated si particles, graphene sheets, and an optional blowing agent in a liquid medium to form a graphene/si dispersion; (b) dispensing and depositing the dispersion onto a supporting substrate to form a wet layer and removing the liquid medium from the wet layer to form a dried layer of graphene/si mixture material; and (c) exposing the dried layer to a high temperature environment, from 300° c. To 2,000° c., to induce volatile gas molecules from graphene sheets or to activate the blowing agent for producing the graphene foam and, concurrently, to enable a catalyst metal-catalyzed growth of multiple si nanowires emanated from si particles as a feed material in pores of the foam to form the anode layer; wherein the si nanowires have a diameter of 5-100 nm and a length-to-diameter aspect ratio of at least 5..
Nanotek Instruments, Inc.


Quantum capacitance graphene varactors and fabrication methods
A plate varactor includes a dielectric substrate and a first electrode embedded in a surface of the substrate. A capacitor dielectric layer is disposed over the first electrode, and a layer of graphene is formed over the dielectric layer to contribute a quantum capacitance component to the dielectric layer.
International Business Machines Corporation


Apparatus and associated methods for electrical storage
An apparatus including a first charge collector and an ionic layer, the ionic layer configured to absorb water from the surrounding environment to deliver said water to the apparatus, the apparatus including graphene oxide provided on the first charge collector, the graphene oxide configured to generate protons in the presence of water; a second conductive material spaced apart from the first charge collector, the second material having a lower work function than the first charge collector, the graphene oxide extending from the first charge collector to be in contact with the second material at an interface; wherein the ionic layer is in contact with the graphene oxide and the second material; and wherein the ionic layer includes a room temperature ionic fluid and a solidifying material which provides for the ionic layer to be a solid at room temperature.. .
Nokia Technologies Oy


Graphene-copper composite structure and manufacturing method
A composite structure comprises a copper layer and first and second graphene layers sandwiching the copper layer, wherein the composite structure provides electron-path tunnels between the copper layer and the first and second graphene layers. The electron-path tunnels may enhance the electrical conductivity.
International Copper Association, Ltd.


Graphene display, a driving a graphene display and a driving apparatus
The present application discloses a graphene display, and a driving method and a driving apparatus for a graphene display, the driving apparatus for a graphene display includes obtaining the grayscale values of the three primary colors of the pixel to be input; determining the color and grayscale values of three dynamic sub-pixels according to the grayscale values of the three primary colors of the pixel and the correspondence relationship of the preset grayscale values of the three primary colors and the grayscale values of the five primary colors; applying the driving voltages to the three dynamic sub-pixels respectively corresponding to the color and grayscale values of three dynamic sub-pixels. By the method described above, the gamut of the display is increased, to increase the display performance of the display and decrease the power consumption of the display..
Shenzhen China Star Optoelectronics Technology Co., Ltd.


Touch display panel, manufacturing touch display panel, and touch panel display
The present disclosure proposes a touch display panel, a method for manufacturing touch display panel, and a touch panel display. The touch display panel includes an upper substrate, a lower substrate, a display element layer arranged between the upper substrate and the lower substrate, a first insulating layer, and a transparent touch electrode layer.
Shenzhen China Star Optoelectronics Technology Co., Ltd.


Graphene oxide-based nanolab and methods of detecting of exosomes
A capture device for capturing a biological substance can include: a substrate; a graphene-oxide layer on the substrate; at least one polydopamine polymer coupled with the graphene-oxide; and at least one targeting receptor coupled to the polydopamine(s), wherein the targeting receptor is capable of targeting/binding with a target biological substance. The graphene-oxide may be covalently coupled with the substrate and polydopamine, and the polydopamine may be covalently coupled with the targeting receptor.
Kansas State University Research Foundation


Graphene-based multi-modal sensors
A method for fabricating a composite film structure, the method includes determining a desired morphology for a metallic layer of the composite film structure, selecting a first metal substrate based on the determining, transferring a graphene layer onto the first metal substrate, depositing the metallic layer on the graphene layer to achieve the desired morphology, and removing the first metal substrate from the graphene and the deposited metallic layer to form the composite film structure. A surface energy difference between the first metal substrate and the deposited metallic layer results in the desired morphology of the metallic layer..
The Regents Of The University Of California


Thin metal coating methods for high conductivity graphene and stanene metal composites and methods of manufacture
Embodiments of the present technology include thin coating methods for graphene and/or stanene metal composites. An example composite is created by depositing a material including any of graphene and stanene onto a porous metal foam substrate, compressing the porous metal foam the deposited material to form a graphene-metal composite, and depositing a thin metal coating on an outer surface of the porous metal foam substrate or an outer surface of deposited material using any of physical vapor deposition and chemical vapor deposition..
Fourte' International, Sdn. Bhd.


High-resolution patterning of graphene by screen and gravure printing for highly flexible printed electronics
graphene ink compositions as can be utilized with gravure and screen printing processes, to provide flexible electronic components with high-resolution printed graphene circuitry.. .

Low volatility, high efficiency gas barrier coating for cryo-compressed hydrogen tanks

A bilayer object consisting of a carbon fiber reinforced polymer substrate coated with a composition of matter comprising horizontally aligned exfoliated graphene sheets dispersed in an epoxy binder. A method includes depositing graphene into a hardener, mixing the hardener and the graphene to produce a homogenous composite mixture, adding a resin material to the composite mixture to produce an epoxy graphene material, coating a structure with the epoxy graphene material, aligning the graphene sheets in the in-plane orientation, and curing the epoxy graphene material..
Palo Alto Research Center Incorporated

Optically transparent microwave polarizer based on quasi-metallic graphene

An optically transparent graphene-based wire-grid polarizer for operating at microwave frequencies (x band) has a glass substrate having multiple strips or layers of socl2 doped graphene. The strips are separated by portions of the glass substrate such that the strips are arranged in parallel.
United States Of America As Represented By The Secretary Of The Army

Composite-coated lithium iron phosphate and preparation method therefor, and lithium ion battery

A composite-coated lithium iron phosphate in a three-dimensional nanonetwork layered structure and a preparation method therefor, and a lithium ion battery, wherein a composite is prepared by compounding a conducting polymer, graphene and a carbon nano tube. The preparation method for the coated lithium iron phosphate comprises the following steps: doping the composite and anhydrous ferric phosphate in situ in the process of preparing the anhydrous ferric phosphate, serving as a lithium iron phosphate precursor, then mixing the composite in-situ doped anhydrous ferric phosphate, a lithium source, a traditional carbon material and a solvent to obtain slurry, spray drying the slurry, and calcining to obtain the composite-coated lithium iron phosphate in a three-dimensional nanonetwork layered structure.
Institute Of Process Engineering, Chinese Academy Og Sciences

Method for manufacturing a graphene thin-film transistor

The present invention provides a method for manufacturing a graphene thin-film transistor, which includes: depositing a graphene layer on a surface of a copper foil; depositing a metal layer on a surface of the graphene layer; attaching a support layer to a surface of the metal layer to form a graphene film; placing the graphene film in a copper etching solution until the copper foil is dissolved completely, then transferring the graphene film to a target substrate, and removing the support layer; defining patterns of a source and a drain on the surface of the metal layer, manufacturing a source electrode and a drain electrode, and manufacturing a gate electrode on a target substrate.. .
Wuhan China Star Optoelectronics Technology Co., Ltd.

Semiconductor device and manufacturing method therefor

The present disclosure relates to the technical field of semiconductor processes and discloses a semiconductor device and a manufacturing method therefor. The method includes: providing a substrate containing a first dielectric layer; forming a lower gate material layer on the first dielectric layer; patterning the lower gate material layer to form gate lines; depositing a second dielectric layer to cover the gate lines; planarizing the second dielectric layer; forming an insulating buffer material layer; patterning the insulating buffer material layer to form a patterned insulating buffer layer containing multiple separate portions, each separate portion extending to intersect one or more gate lines; selectively growing a graphene layer on the patterned insulating buffer layer; forming a third dielectric layer to cover the graphene layer and the second dielectric layer; and forming an upper gate electrode layer on the third dielectric layer.
Semiconductor Manufacturing International (shanghai) Corporation

Semiconductor device and manufacturing method thereof

The present disclosure relates to the technical field of semiconductor technologies and discloses a semiconductor device and a manufacturing method therefor. The method includes forming a growth substrate by providing a substrate structure containing a sacrificial substrate, a first dielectric layer on the sacrificial substrate, and a plurality of recesses formed through the first dielectric layer and into the sacrificial substrate, by forming a buffer layer covering exposes surfaces of the plurality of recesses, by selectively growing a graphene layer on the buffer layer, and by filling the plurality of recesses with a second dielectric layer.
Semiconductor Manufacturing International (shanghai) Corporation

Semiconductor device and manufacturing method therefor

The present disclosure relates to the technical field of semiconductor processes, and discloses a semiconductor device and a manufacturing method therefor. The manufacturing method includes: providing a substrate structure including a substrate and a first material layer on the substrate, wherein a recess is formed in the substrate and the first material layer includes a nanowire; forming a base layer on the substrate structure; selectively growing a graphene layer on the base layer; forming a second dielectric layer on the graphene layer; forming an electrode material layer on the substrate structure to cover the second dielectric layer; defining an active region; and forming a gate by etching at least a portion of a stack layer to at least the second dielectric layer so as to form a gate structure surrounding an intermediate portion of the nanowire, where the gate structure includes a portion of the electrode material layer and the second dielectric layer.
Semiconductor Manufacturing International (shanghai) Corporation

Semiconductor structure having multiple-porous graphene layers and the fabrication method thereof

The present invention provides a semiconductor structure having a multiple-porous graphene layer, comprising a semiconductor substrate, a multiple-porous graphene layer, and a gallium nitride layer. And, the present invention provides that the fabrication method for forming the semiconductor structure having a multiple-porous graphene layer, comprises: firstly, growing up the graphene on the copper foil; then, using the acetone and isopropyl alcohol to wash the semiconductor substrate, and then using the nitrogen flow to dry up; transferring the graphene onto the semiconductor substrate, using the poly(methyl methacrylate)to fix the multiple-porous graphene layer, and using the acetone to wash up; using the photolithography process to etch the whole surface of the multiple-porous graphene layer; and, using the metalorganic chemical vapor deposition to deposit gallium nitride on the multiple-porous graphene layer and the semiconductor substrate..
Chang Gung University

Methods for preparation of concentrated graphene ink compositions and related composite materials

A rapid, scalable methodology for graphene dispersion and concentration with a polymer-organic solvent medium, as can be utilized without centrifugation, to enhance graphene concentration.. .

Fabrication of ceramic matrix composites with carbon nanotubes and graphene

Systems and methods are provided for fabrication of a ceramic matrix composite (cmc) material with carbon nanotubes and graphene. One embodiment is a method for forming a ceramic matrix composite structure.
The Boeing Company

Holey graphene framework composites for ultra-high rate energy storage and methods of preparing such composites

A method of forming an electrode material includes: (1) loading an electrochemically active material onto graphene sheets; (2) combining the electrochemically active material-loaded graphene sheets with holey graphene oxide sheets to form a mixture; and (3) treating the mixture under reducing conditions to form a composite including a graphene framework loaded with the electrochemically active material.. .
The Regents Of The University Of California

Graphene liquid crystal display, graphene luminous component, and fabricating the same

The present disclosure proposes a method for fabricating a graphene luminous component. The method includes: supplying a bottom substrate on which metallic gates are arranged at intervals; forming a first insulating protective layer covering the bottom substrate and the metallic gate; forming a graphene luminous layer with graphene luminous blocks on the first insulating protective layer; forming a graphene source and a graphene drain arranged at intervals on each of graphene luminous blocks; forming a second insulating protective layer covering the first insulating protective layer, the graphene luminous layer, the graphene source, and the graphene drain; and laminating a top substrate onto the second insulating protective layer.
Shenzhen China Star Optoelectronics Technology Co., Ltd.

A providing a transistor

A method and apparatus wherein the method comprises: providing at least one electrode within a semiconductor layer wherein the semiconductor layer is provided on a first side of a wafer; thinning the wafer to produce a thinned wafer; providing graphene on a second side of the thinned wafer; attaching the semiconductor layer to an electrical interface on the first side of the thinned wafer; and providing at least one electrical connection from the graphene to the electrical interface so as to form a transistor comprising the at least one electrode and the graphene.. .
Nokia Technologies Oy

Driving methods of graphene display devices and graphene display devices

The present disclosure relates to a driving method of graphene display device and the graphene display devices. The method includes obtaining target point coordinates of a pixel within a color gamut system by rgb grayscale values to be inputted by the pixels, obtaining chromaticity coordinate (cie) or a brightness of a first dynamic sub-pixel and a second dynamic sub-pixel of the pixel according to a location relationship of three color gamut blocks divided by a rgb color gamut within the target point coordinate and a gamut coordinate system, determining a driving voltage of the pixel in accordance with the cie or the brightness of the first dynamic sub-pixel and the second dynamic sub-pixel, and outputting the driving voltage to the pixel.
Shenzhen China Star Optoelectronics Technology Co. , Ltd.

Graphene backlight module and liquid cystal display device including the same

The present disclosure teaches a graphene backlight module and a liquid crystal display (lcd) device including the backlight module. The backlight module includes a lower substrate, a number of graphene sources, a number of graphene drains, a graphene light generation layer, a first insulating protection layer, a number of graphene gates, and a second insulating protection layer.
Shenzhen China Star Optoelectronics Technology Co., Ltd.

Nanoscale wires with external layers for sensors and other applications

The present invention generally relates to nanoscale wires and other nanomaterials, including nanoscale wires used as sensors, including nanoscale wires comprising semiconductor nanowires, carbon nanotubes, graphene, or metal oxide nanomaterials. Certain aspects of the invention are generally directed to polymer coating on nanoscale wires that can be used to increase sensitivity to analytes, for example, in physiologically relevant conditions.
President And Fellows Of Harvard College

Gas turbine engine with graphene heat pipe

A graphene heat pipe for a gas turbine engine includes a body of graphene. The body has a hot side to accept heat from the gas turbine engine, a cold side to reject heat from the body, and an adiabatic portion to flow heat within the body between the hot side and the cold side..
United Technologies Corporation

Porous graphene, graphene quantum dot, and green manufacturing method therefor

A porous graphene, a graphene quantum dot and a green preparation method for the porous graphene and the graphene quantum dot. The method includes adding a starting material, graphite, into an acetic acid aqueous solution of chitosan, using chitosan as a stripping agent, obtaining the porous graphene by an ultrasonic treatment, centrifugation and precipitation, and obtaining the graphene quantum dot by dialyzing a supernatant from the centrifugation.
South China University Of Technology

Methods for preparation of concentrated graphene ink compositions and related composite materials

A rapid, scalable methodology for graphene dispersion and concentration with a polymer-organic solvent medium, as can be utilized without centrifugation, to enhance graphene concentration.. .

Graphite oxide reinforced fiber in hosts such as concrete or asphalt

This can be a method of making a high strength composite reinforcing fiber using flat go flakes coated on a conventional reinforcing fiber. This maintains some the flexibility of the fiber and aligns the flat graphene flakes along the surface of the fiber; this dramatically increases the strength of the fiber.
Garmor Inc.

Rounded exterior diameter adjustable shipping container, system, and shipping freight with the container made of reinforced thermoplastic fiber, articles, compositions for the manufacture of the articles, methods of manufacture, and articles formed therefrom

Rounded exterior diameter adjustable, thermoplastic, compositions, cellulose nanofiber composition and/or carbon fiber containing shipping containers, systems, and methods for shipping freight, and more specifically to containers, trucks and/or trailers of different lengths, widths and sizes trailer, systems, and methods for shipping freight of all types from a customer's premise through land vehicles and aircraft to the premise of the consignee, preferably without the need for intermediate repackaging of the freight, where the freight shipping container can be diameter adjusted using diameter adjustable sidewall sections that are configured to conform to the interior shape of an aircraft fuselage, such that the shipping container can be adjusted to have a size and shape which is compatible with a wide variety of standard-sized trucks and aircraft, wherein the rounded, exterior diameter adjustable shipping container is made from a composition comprising a combination of one or more of a plurality of reinforcing fibers including carbon or graphite or graphene fibers; optionally a plurality of thermoplastic fibers; optionally a plurality of cellulose nanofibers; optionally a plurality of polymeric binder fibers; and continuous spaced carrier fibers; and methods for using the shipping containers.. .

Graphene core for a golf ball

A golf ball with a core comprising polybutadiene and graphene is disclosed herein. The golf ball has a single core comprising polybutadiene and graphene.
Callaway Golf Company

Porous silicon composite cluster and carbon composite thereof, and electrode, lithium battery, field emission device, biosensor and semiconductor device each including the same

A porous silicon composite cluster comprising: a porous core comprising a porous silicon composite secondary particle, wherein the silicon composite secondary particle comprises an aggregate of two or more silicon composite primary particles, and the silicon composite primary particles each comprise silicon, a silicon oxide of the formula siox, wherein 0<x<2, disposed on the silicon, and a first graphene disposed on the silicon oxide; and a shell disposed on and surrounding the core, the shell comprising a second graphene.. .
Samsung Sdi Co., Ltd.

Process for metal-sulfur battery cathode containing humic acid-derived conductive foam

Provided is a process for producing a sulfur cathode for a metal-sulfur battery. The process comprises: (a) preparing a humic acid-derived foam or combined humic acid/graphene-derived foam composed of multiple pores and pore walls, wherein the pore walls contain one or a plurality of hexagonal carbon atomic planes; and (b) impregnating the foam with sulfur or sulfide in a form of thin particles or coating, having a diameter or thickness less than 500 nm, which are lodged in the pores or deposited on the pore walls of the foam..
Nanotek Instruments, Inc.

Method for doping graphene, manufacturing graphene composite electrode, and graphene structure comprising same

The present invention relates to graphene and, particularly, to a method for doping graphene using substrate surface modification, a method for manufacturing a graphene composite electrode using graphene and inorganic matter, and a graphene structure comprising the same. The method for doping graphene according to an embodiment of the present invention may comprise the steps of: forming, on a substrate, a precursor polymer layer for doping; and positioning graphene on the substrate on which the precursor polymer layer is formed.
Snu R&db Foundation

Graphene display

A graphene display is provided. The graphene display includes a first graphene light-emitting unit and a second graphene light-emitting unit which are stacked and overlapped, and a metal shield layer disposed between the first graphene light-emitting unit and the second graphene light-emitting unit.
Shenzhen China Star Optoelectronics Technology Co., Ltd.

Graphene display module and liquid crystal display

The present disclosure proposes a graphene backlight module and an lcd. The graphene backlight module includes a first transparent substrate, a second transparent substrate, a graphene luminous layer, a protective layer, and a black matrix layer.
Shenzhen China Star Optoelectronics Technology Co., Ltd.

Conductive ink composition and conductive architecture for wireless antenna

A binder-free conductive ink with a conductive cage architecture for the wireless antenna with adhesion enhancement by carbon powders that aims to enormously reduce the solid content of conductor and can be used to print antennas. For example, silver content of the ink composition is greatly decreased due to the absence of insulated binder.

Functionalized graphene comprising two or more types of amines, and preparation method therefor

Disclosed is a functionalized graphene containing two or more amines having excellent electrical, thermal and mechanical properties by allowing good interfacial bonding force and uniform dispersion with a thermoplastic polymer, and a method for preparing the functional graphene. The functionalized graphene comprises a carbon material selected from the group consisting of graphene, reduced graphene, graphene oxide, and mixture thereof; and a monovalent amine group and a bivalent or higher amine group which are bonded to the carbon material..
Dongjin Semichem Co., Ltd.

3d printing of graphene (oxide) composites

The invention provides a method for printing a 3d printed object (100), the 3d printed object (100) comprising a first type of printed material (1120) having electrically conductive properties and a second type of printed material (2120) having electrically insulating properties, wherein the method comprises: (i) providing printable material (110), wherein the printable material (110) has electrically insulating properties and wherein the printable material (110) is convertible by heat to a material (1110,1120) having electrically conductive properties; (ii) printing with a 3d printer (500) said printable material (110) to generate printed material (120); and (iii) subjecting to heat part of the printed material (120) after deposition; to provide said 3d printed object (100).. .
Philips Lighting Holding B.v.

Electrode and power storage device

A novel electrode, a novel power storage device, an electrode with less deterioration, an electrode with a high capacity, a long-life power storage device, a power storage device with less deterioration, a power storage device with high energy density, or a highly reliable power storage device is provided. The electrode includes a graphene compound including a graphene layer and a substituted or unsubstituted chain group, and an active material.
Semiconductor Energy Laboratory Co., Ltd.

Conductive polymer binder for a novel silicon/graphene anode in lithium ion batteries

A composite electrode prepared from silicon-graphene material and conductive polymer binder poly (1-pyrenemethyl methacrylate-co-methacrylic acid) for use in lithium-ion batteries.. .
Bayerische Motoren Werke Aktiengesellschaft

Graphene laminate and preparation method therefor

Disclosed is a graphene laminate including a first graphene layer, containing an electron-donating functional group, and a second graphene layer, disposed on the first graphene layer and configured to include graphene, wherein the second graphene layer is n-doped with the first graphene layer. Thereby, graphene is doped with amino-group-modified graphene, thus preventing the transparency of graphene from decreasing, and the extent of doping of graphene can be adjusted, and the doping effect can last a long time even without any protective layer..
Center For Advanced Soft Electronics

Led package structure, display apparatus, and color display

The present application provides an led package structure, a display apparatus, and a method for color display. The led package structure of the present application includes: at least one graphene led chip, a white-light led structure, an led package holder provided with an optical cup; where the at least one graphene led chip and the white-light led structure are packaged in the optical cup, and a plurality of adjustable wavelength points of the at least one graphene led chip together with a white light point of the white-light led structure form a gamut display range.
Hisense International Co., Ltd.

Leak detector and detecting leaks

A leak detector for detection of leaks from an object to be tested by detection of a tracer gas, the leak detector including: an inlet of gases; a pumping device; a pumping line connecting the inlet of the gases to the pumping device; a device for detection of tracer gas fitted to the pumping line, as bypass of the pumping device, the device for detection of tracer gas including a probe configured to ionize the gas molecules and to measure current of the ionized gas molecules, and a separating membrane arranged upstream of the probe. The separating membrane is a monoatomic layer of graphene deposited on a gas-permeable substrate of the device for detection of tracer gas including selection orifices, the greatest dimension of which is less than 5 angstroms, made in the monoatomic layer of graphene..
Pfeiffer Vacuum

Optically transparent oxygen generation catalyst, production method thereof, and chemical reactor utilizing the same

The present embodiments provide: a catalyst having excellent optical transparency, catalytic activity and durability; and a method of producing the same. This catalyst comprises a graphene oxide layer and a nickel-iron layered double hydroxide layer supported on the surface of the graphene oxide layer.
Kabushiki Kaisha Toshiba

Method for making metal-carbon composites and compositions

A method for making covetic metal-carbon composites or compositions by electron beam melt heating under vacuum (pressure <10−3 torr) is described herein. This fabrication method is advantageous, in that it provides oxygen-free covetic materials in a process that allows precise control of the composition of the covetic material to be produced.
Uchicago Argonne, Llc

Gaphene/silver composite material and preparation method thereof

A method for preparing graphene/silver composite material is provided. A reduction agent and silver nitrate are added successively into a graphene oxide solution; silver powder obtained by reduction is directly combined with graphene oxide in the solution, so as to preliminarily obtain graphene oxide/silver composite powder; graphene/silver composite powder is then obtained through drying and reducing; a graphene/silver composite block material, a graphene/silver composite wire material and a graphene/silver composite belt material are able to be obtained by powder metallurgy, hot-extruding and rolling techniques.
Shanghai Hiwave Composite Materials Co., Ltd.

Method of making graphene compositions

A method of making a composition, comprising blending a mixture comprising graphene sheets, one or more cyclic compounds having at least one ring having two or more conjugated double and/or triple bonds, and at least one solvent, wherein the one or more cyclic compounds have a solubility of no more than about 5 percent, based on the weight of the one or more cyclic compounds and solvent.. .
Vorbeck Materials Corp.

Production of graphene

A method of synthesizing high quality graphene for producing graphene particles and flakes is presented. The engineered qualities of the graphene include size, aspect ratio, edge definition, surface functionalization and controlling the number of layers.
Alpha Metals, Inc.

Separation of water using a membrane

This invention relates to uses of graphene oxide, and in particular graphene oxide on a porous support, and a membrane comprising these materials. This invention also relates to methods of dehydration, which include vapour phase separation and pervaporation.
The University Of Manchester

Black liquor concentration by a membrane comprising graphene oxide on porous polymer

The disclosed technology includes a membrane-based device configured to concentrate black liquor, which results from papermaking. Certain embodiments may comprise a nanofiltration membrane configured to remove lignin from black liquor, and the nanofiltration membrane may include a first macroporous polymer substrate and a first graphene oxide membrane covering the first macroporous polymer substrate.
Georgia Tech Research Corporation

Multi-doped graphene and preparing the same

A graphene doped with different dopants and a method for preparing the same are disclosed. A method for preparing a multi-doped graphene includes: mixing a metal-based dopant and at least one organic-based dopant to prepare a doping solution; stacking a graphene layer on a substrate; and doping the graphene layer with the doping solution that includes the metal-based dopant and the at least one organic-based dopant.
Lg Electronics Inc.

Method for manufacturing transparent conductor, transparent conductor and device for manufacturing the same, and device for manufacturing transparent conductor precursor

According to one embodiment, a method of manufacturing a transparent conductor is provided. In the method, a silver nanowire layer including a plurality of silver nanowires and having openings is formed on a graphene film supported by a copper support.
Kabushiki Kaisha Toshiba

Method for manufacturing graphene-coated object, negative electrode of secondary battery including graphene-coated object, and secondary battery including the negative electrode

To form graphene to a practically even thickness on an object having an uneven surface or a complex surface, in particular, an object having a surface with a three-dimensional structure due to complex unevenness, or an object having a curved surface. The object and an electrode are immersed in a graphene oxide solution, and voltage is applied between the object and the electrode.
Semiconductor Energy Laboratory Co., Ltd.

Paintable surface heating system using graphene nano-platelets apparatus and method

A heating device including a substrate, at least one heating layer on the substrate, and a power supply electrically connected to the at least one heating layer. The heating layer includes graphene nanomaterials.

Micro-sound detection analysis device and array audio signal processing method based on same

The equipment of micro-acoustic detection analysis and the processing method of audio signal array based on this equipment, which is the field of micro-acoustic detection, could give a solution that having an excessive sound intensity lower limit using capacitor micro-acoustic detector, and using current way of audio signal processing could not identification and positioning for sound source from micro-acoustic detector at same time. This equipment detects sound pressure based on micro-acoustic detection cell of graphene membrane.

Lithium-sulfur battery separator and lithium-sulfur batteries using the same

The present disclosure relates to a lithium-sulfur battery separator. The lithium-sulfur battery separator comprises a separator substrate and a functional layer covered on the separator substrate.
Hon Hai Precision Industry Co., Ltd.

Method for making lithium-sulfur battery separator

The present disclosure relates to a method for making a lithium-sulfur battery separator. The method comprises providing a separator substrate, and forming a functional layer on at least one surface of the separator substrate.
Hon Hai Precision Industry Co., Ltd.

Light-emitting device

A light-emitting device includes a semiconductor stack including a first semiconductor layer, a second semiconductor layer, and an active layer emitting an uv light, formed between the first semiconductor layer and the second semiconductor layer; a first transparent conductive layer formed on the second semiconductor layer, the first transparent conductive layer including metal oxide; and a second transparent conductive layer formed on the first transparent conductive layer, the second transparent conductive layer including graphene, wherein the first transparent conductive layer is continuously formed over a top surface of the second semiconductor layer, the first transparent conductive layer comprises a thickness smaller than 10 nm.. .
Epistar Corporation

Semiconductor device

Performance of a semiconductor device is improved. graphene particles are mixedly added in a sealing resin covering a semiconductor chip.
Renesas Electronics Corporation

Heat dissipation structure using graphene quantum dots and manufacturing the heat dissipation structure

Disclosed are heat dissipation structures using nano-sized graphene fragments such as graphene quantum dots (gqds) and/or methods of manufacturing the heat dissipation structures. A heat dissipation structure includes a heating element, and a heat dissipation film on the heating element to dissipate heat generated from the heating element, to outside.
Samsung Electronics Co., Ltd.

Graphene pellicle for extreme ultraviolet lithography

A method includes depositing a first material layer over a substrate; and depositing a graphene layer over the first material layer, thereby forming a first assembly. The method further includes attaching a carrier to the graphene layer; removing the substrate from the first assembly; and removing the first material layer from the first assembly..
Taiwan Semiconductor Manufacturing Co., Ltd.

Graphene pellicle for extreme ultraviolet lithography

A method includes depositing a first material layer over a first substrate; and depositing a graphene layer over the first material layer. The method further includes depositing an amorphous silicon layer over the graphene layer and bonding the amorphous silicon layer to a second substrate, thereby forming an assembly.
Taiwan Semiconductor Manufacturing Co., Ltd.

High sensitivity broad-target porous graphene oxide capacitive vapor sensor

The present invention discloses a novel capacitive vapor sensor comprising porous immobilized graphene oxide (pgo) on an electrode surface. Also disclosed is an in-situ process for the preparation of this sensor and various uses thereof..
B.g. Negev Technologies & Applications Ltd. At Ben-gurion University

Unitary graphene-based composite material

A unitary graphene-based integrated heat sink comprising a heat collection member (base) and at least one heat dissipation member (e.g. Fins) integral to the baser, wherein the base is configured to be in thermal contact with a heat source, collects heat therefrom, and dissipates heat through the fins.
Nanotek Instruments, Inc.

Method for producing graphene

There is provided a method for producing graphene which includes a first growth step of supplying a carbon-containing gas into a chamber in which a metal catalyst is disposed to grow graphene on a surface of the metal catalyst, an activation step of supplying a process gas containing an oxygen gas or a hydrogen gas into the chamber in which the metal catalyst having the graphene grown on the surface thereof is disposed to reactivate the metal catalyst, and a second growth step of supplying the carbon-containing gas into the chamber in which the reactivated metal catalyst is disposed to regrow the graphene on the surface of the metal catalyst.. .
Tokyo Electron Limited

Dynamically vulcanized alloys

This invention relates to the preparation of a dynamically vulcanized alloy comprising at least one elastomer, at least one thermoplastic resin, graphene, and an ethylene copolymer resin.. .
Exxonmobil Chemical Company - Law Technology

Graphite oxide entrainment in cement and asphalt composite

A method of producing dispersed of high quality graphene/graphite oxides in a powder matrix to then be reacted to form a composite. Where the powders have similar hydrophobicity and the graphene/graphite oxides has minimal surface oxidation or minimal epoxy group and where the powders are sonically mixed..
Garmor Inc.

Method of forming a graphene device

The invention concerns a method of forming a graphene device, the method comprising: forming a graphene film (100) over a substrate; depositing, by gas phase deposition, a polymer material covering a surface of the graphene film (100); and removing the substrate from the graphene film (100), wherein the polymer material forms a support (102) for the graphene film (100).. .
Universite Grenoble Alpes

Mems structure with graphene component

A microelectromechanical systems (mems) structure includes a substrate, an epitaxial polysilicon cap located above the substrate, a first cavity portion defined between the substrate and the epitaxial polysilicon cap, and a first graphene component having at least one graphene surface immediately adjacent to the first cavity portion.. .
Robert Bosch Gmbh

Fire retardant aviation laminate

An aviation laminate includes a plurality of wooden elements, and an adhesive disposed between the plurality of wooden elements, wherein the adhesive includes a thermal filler, wherein the thermal filler is at least one of graphene, hexagonal boron nitride and intumescent powder.. .
Goodrich Corporation

Engineered polymer-based electronic materials

The filler comprises one or more of graphene, functionalized graphene, graphene oxide, a polyhedral oligomeric silsesquioxane, graphite, a 2d material, aluminum oxide, zinc oxide, aluminum nitride, boron nitride, silver, nano fibers, carbon fibers, diamond, carbon nanotubes, silicon dioxide and metal-coated particles, and the composition comprises from 0.001 to 40 wt. % of the filler based on the total weight of the composition..

Isotope separation methods and systems

Methods and systems for the separation of isotopes from an aqueous stream are described as can be utilized in one embodiment to remove and recover tritium from contaminated water. Methods include counter-current flow of an aqueous stream on either side of a separation membrane.
Savannah River Nuclear Solutions, Llc

Method of forming a medical device comprising graphene

The invention concerns a method of forming a medical device, the method comprising: forming a graphene film (100) over a substrate (204); depositing, by gas phase deposition, a polymer material covering a surface of the graphene film (100); and removing the substrate (204) from the graphene film (100), wherein the polymer material forms a support (102) for the graphene film (100).. .
Universite Grenoble Alpes

Method of using chemical reaction transparency of graphene

The present invention relates to a method using chemical reaction transparency of graphene, and more specifically to a method capable of forming a desired material by a catalytic reaction on a graphene surface using the graphene which inhibits oxygen diffusion without blocking electron delivery, and an applied method thereof.. .
Korea Research Institute Of Chemical Technology

Illuminating helmet

A technique relates to a head apparatus for a user. A structure has an opening.

Quantum dot sensor readout

An apparatus, including a quantum dot graphene field effect transistor configured to operate such that photons incident thereon cause electron-hole pairs to be formed; a connector element connected to the back gate of the transistor; a switch element as an output switch to provide an output for a current flowing through the transistor. The transistor is configured to be back gate biased via the connector element connected to the back gate such that the electrons or the holes formed are trapped in an at least one quantum dot and respectively the holes or the electrons migrate to the channel of the transistor.
Nokia Technologies Oy

Humic acid-bonded metal foil film current collector and battery and supercapacitor containing same

A humic acid-bonded metal foil current collector in a battery or supercapacitor, comprising: (a) a thin metal foil having two opposed but parallel primary surfaces; and (b) a thin film of humic acid (ha) or a mixture of ha and graphene, having hexagonal carbon planes, wherein ha or both ha and graphene are chemically bonded to at least one of the two primary surfaces; wherein the thin film has a thickness from 10 nm to 10 μm, an oxygen content from 0.01% to 10% by weight, an inter-planar spacing of 0.335 to 0.50 nm between hexagonal carbon planes, a physical density from 1.3 to 2.2 g/cm3, all hexagonal carbon planes being oriented substantially parallel to each other and parallel to the primary surfaces, exhibiting a thermal conductivity greater than 500 w/mk, and/or electrical conductivity greater than 1,500 s/cm when measured alone without the metal foil.. .
Nanotek Instruments, Inc.

Graphene-based detector for w-band and terahertz radiations

A method for detecting w-band and terahertz radiations is disclosed. The method provides a graphene-si schottky diode that includes a graphene monolayer having an ohmic contact with a source electrode supported on a top surface of a doped silicon substrate by an insulating layer, and extends over an edge of the source electrode and contacts the top surface, in a manner forming a schottky junction.

Systems and methods for atomic film data storage

The present disclosure provides systems and methods associated with data storage using atomic films, such as graphene, boron nitride, or silicene. A platter assembly may include at least one platter that has one or more substantially planar surfaces.
Elwha Llc

Graphite electrode comprising electrochemically reduced graphene oxide and methods thereof

A modified graphite electrode comprising a coating of electrochemically reduced graphene oxide. The modified graphite electrode may be employed in detecting of uric acid.
King Fahd University Of Petroleum And Minerals

Solvated graphene frameworks as high-performance anodes for lithium-ion batteries

A lithium-ion battery includes: 1) an anode; 2) a cathode; and 3) an electrolyte disposed between the anode and the cathode and including lithium ions. The anode includes a graphene framework film including interconnected graphene sheets, and the graphene framework film has a specific surface area of 600 m2g−1 or more..
The Regents Of The University Of California

Plasmon-enhanced terahertz graphene-based photodetector and fabrication

A plasmon-enhanced terahertz graphene-based photodetector exhibits an increased absorption efficiency attained by utilizing a tunable plasmonic resonance in sub-wavelengths graphene micro-ribbons formed on sic substrate in contact with an array of bi-metallic electrode lines. The orientation of the graphene micro-ribbons is tailored with respect to the array of sub-wavelengths bi-metallic electrode lines.
Monash University

Apparatus comprising a sensor arrangement and associated fabrication methods

An apparatus comprising: a plurality of sensors (501) arranged in an array (500), each sensor having a source electrode (504), a drain electrode (503), a gate electrode (505) and a channel, wherein the source electrode and drain electrode are elongate and the channel has a channel width defined by the longitudinal extent of the source and/or drain electrode and a channel length defined by the separation between the source and drain electrodes; a common conductive or semiconductive layer (506), which may be made of graphene, comprising the channels of the sensors (501) and arranged to extend over the plurality of sensors of the array and configured to be in electrical contact with at least the source electrode and the drain electrode of each sensor; and wherein the source electrode or drain electrode of each sensor forms a substantially continuous sensor perimeter at least along the channel width, which substantially encloses the other electrode of each sensor to inhibit the flow of charge carriers beyond the sensor perimeter to inhibit crosstalk between sensors in the array.. .
Emberion Oy

Graphene nanoribbon-based materials and their use in electronic devices

Embodiments of the present disclosure pertain to methods of making electrically conductive materials by applying nanowires and graphene nanoribbons onto a surface to form a network layer with interconnected graphene nanoribbons and nanowires. In some embodiments, the methods include the following steps: (a) applying graphene nanoribbons onto a surface to form a graphene nanoribbon layer; (b) applying nanowires and graphene nanoribbons onto the graphene nanoribbon layer to form the network layer; and (c) optionally applying graphene nanoribbons onto the formed network layer to form a second graphene nanoribbon layer on the network layer.
William Marsh Rice University

Manufacture liquid crystal display panel

The present invention provides a manufacture method of a liquid crystal display panel. The graphene/pedot:pss composite transparent conductive films replace the traditional ito transparent conductive films, and a polar material is mixed in the liquid crystal compound of the liquid crystal display panel.
Shenzhen China Star Optoelectronics Technology Co., Ltd.

Enhancing sensitivity by directly printing nanosensors using advanced manufacturing techniques on a pre-amp board or a daughterboard

The present invention provides a printable nanosensor and leads that can be manufactured using three-dimensional printing techniques and printing directly on a daughter board that can be connected to a self-contained pre-amplified printed circuit board. Although graphene is highly sensitive as a chemical sensor and can detect parts per million (ppm) concentrations of species, the integration of printed graphene and other two-dimensional sensing materials to form a sensor assembly can be used to increase the sensitivity even further, enabling detection of parts per billion (ppb) concentrations and even single molecule detection..
U.s.a. As Represented By The Administrator Of The National Aeronautics And Space Administration

Engineered composite structure using graphene oxide

This is generally a method of producing dispersed high quality engineered composite structures using flat flakes of graphene/graphene oxides/reduced graphene oxides in a host as the reinforcing additive of the composite.. .
Garmor Inc.

Graphene and hexagonal boron nitride planes and associated methods

graphene layers made of primarily sp2 bonded atoms and associated methods are disclosed. In one aspect, for example, a method of forming a graphite film can include heating a solid substrate under vacuum to a solubilizing temperature that is less than a melting point of the solid substrate, solubilizing carbon atoms from a graphite source into the heated solid substrate, and cooling the heated solid substrate at a rate sufficient to form a graphite film from the solubilized carbon atoms on at least one surface of the solid substrate.

Water reclamation using graphene oxide films

Systems, devices, and methods are described herein for generating liquid water from water vapor present in the atmosphere through use of selectively permeable films that permit water to pass through but that block other liquids and gases, such as atmospheric gases. The systems, devices, and methods employ condensation techniques in which only the water that is passed through the selectively permeable film is cooled, as compared to other atmospheric water generation systems, which cool water and other gases that enter with the water..
Board Of Regents, The University Of Texas System

Graphene oxide-bonded metal foil thin film current collector and battery and supercapacitor containing same

A graphene oxide-bonded metal foil current collector in a battery or supercapacitor, comprising: (a) a free-standing, non-supported thin metal foil having a thickness from 1 μm to 30 μm and two primary surfaces; and (b) a thin film of graphene oxide chemically bonded to at least one of the two primary surfaces without using a binder or adhesive wherein the primary surface does not contain a metal oxide layer and the thin film of graphene oxide has a thickness from 10 nm to 10 μm, an oxygen content from 0.1% to 10% by weight, an inter-graphene plane spacing of 0.335 to 0.50 nm, a physical density from 1.3 to 2.2 g/cm3, all graphene oxide sheets being oriented substantially parallel to each other and parallel to the primary surfaces, exhibiting a thermal conductivity greater than 500 w/mk, and/or electrical conductivity greater than 1,500 s/cm when measured alone without the thin metal foil.. .
Nanotek Instruments, Inc.

Process for producing graphene oxide-bonded metal foil thin film current collector for a battery or supercapacitor

A process for producing a thin film graphene oxide-bonded metal foil current collector for a battery or supercapacitor, comprising: (a) preparing a graphene oxide gel having graphene oxide (go) molecules dissolved in a fluid medium; (b) depositing a layer of go gel onto at least one of two primary surfaces of a metal foil to form a layer of wet graphene oxide gel, wherein the depositing procedure includes shear-induced thinning of the go gel; (c) partially or completely removing said fluid medium from the deposited wet layer to form a dry film of go having an inter-plane spacing d002 of 0.4 nm to 1.2 nm as determined by x-ray diffraction; and (d) heat treating the dry film of graphene oxide to form the thin film graphene oxide-bonded metal foil current collector at a heat treatment temperature from 80° c. To 2,500° c..
Nanotek Instruments, Inc.

Composite materials having red emitting phosphors

A lighting apparatus includes an led light source radiationally coupled to a composite material including a phosphor of formula i and a thermally conductive material dispersed in at least a portion of a binder material. The thermally conductive material includes a material selected from the group consisting of indium oxide, tin oxide, indium tin oxide, calcium oxide, barium oxide, strontium oxide, aluminum hydroxide, magnesium hydroxide, calcium hydroxide, barium hydroxide, strontium hydroxide, zinc hydroxide, aluminum phosphate, magnesium phosphate, calcium phosphate, barium phosphate, strontium phosphate, diamond, graphene, polyethylene nanofibers, carbon nanotubes, silver metal nanoparticles, copper metal nanoparticles, gold metal nanoparticles, aluminum metal nanoparticles, boron nitride, silicon nitride, an alkali metal halide, calcium fluoride, magnesium fluoride, a compound of formula ii, and combinations thereof..
General Electric Company

Electronic device with a graphene device and semiconductor device formed on a common semiconductor substrate

A method for producing an electronic device involves forming a graphene precursor on a first portion of a common semiconductor substrate, forming a graphene layer on the graphene precursor, and forming a semiconductor device on a second portion of the common semiconductor substrate.. .
King Abdullah University Of Science And Technology

Method for manufacturing patterned electrode and liquid crystal display panel and manufacturing method thereof

The present invention provides a method for manufacturing a patterned electrode and a liquid crystal display panel and a manufacturing method thereof. The method for manufacturing a patterned electrode includes the following steps: step 1: mixing a graphene aqueous solution and a pedot:pss solution at a predetermined ratio to form a graphene/pedot:pss mixture solution; step 2: mixing the graphene/pedot:pss mixture solution and photoresist at a predetermined ratio, followed by stirring, to form graphene/pedot:pss photoresist that has electrical conduction capability; step 3: providing a substrate and coating the graphene/pedot:pss photoresist formed in step 2 on the substrate, followed by exposure, development, and baking to form a patterned electrode.
Shenzhen China Star Optoelectronics Technology Co. Ltd.

Apparatus and testing conductivity of graphene

According to the present invention, oxidized and reduced regions of graphene can be accurately detected in a short time using a terahertz wave so as to measure the conductivity of graphene, and thus the time required to test the conductivity of graphene can be reduced. In addition, when an oxidized region exists in graphene, the oxidized region can be immediately reduced by irradiating an electromagnetic wave thereto so as to increase the conductivity of graphene and thus minimize the time required to restore graphene..
Iucf-hyu (industry-university Cooperation Foundation Hanyang University)

Polypyrrole/graphene oxide nanocomposite-coated fiber located in a capillary tube reinforced by a vacuum system for assessment of oxidative stability of edible oils

A vacuum-assisted coated fiber located in a capillary tube system for sampling and delivering materials to an analytical device and a method for sampling analytes is disclosed. A sorbent comprising polypyrrole/graphene oxide is coated on a fiber inserted within an interior space of the capillary tube to entrap an analyte within a sample.

Method for manufacturing electrode for hydrogen production using tungsten carbide nanoflake and electrode for hydrogen production manufactured thereby

A method for manufacturing an electrode for hydrogen production using a tungsten carbide nanoflake may include: forming a tungsten carbide nanoflake on a nanocrystalline diamond film by means of a chemical vapor deposition process in which hydrogen plasma is applied; and increasing activity of the tungsten carbide nanoflake to a hydrogen evolution reaction by removing an oxide layer or a graphene layer from a surface of the tungsten carbide nanoflake. Since an oxide layer and/or a graphene layer of a surface of tungsten carbide is removed by means of cyclic cleaning after tungsten carbide is formed, hydrogen evolution reaction (her) activity of the tungsten carbide may be increased, thereby enhancing utilization as a catalyst electrode..
Korea Institute Of Science And Technology

System and dna sequencing and blood chemistry analysis

A dna sequencing and blood chemistry analysis system and method are provided including one or more sensor chips and one or more sample wells, wherein each sample well is configured to form a seal with one of the sensors. The one or more sensor chips may comprise graphene transistors, and each transistor having an associated sequencing probe.
Nanomedical Diagnostics, Inc.

Method for preparing biomass graphene by using cellulose as raw material

A method for preparing biomass graphene by using cellulose as a raw material includes preparing a catalyst solution, carrying out ionic coordination and high-temperature deoxidization on cellulose and a catalyst so as to obtain a precursor, carrying out thermal treatment and pre-carbonization, and carrying out acid treatment and drying to obtain the graphene. The graphene is uniform in morphology with a single-layer or multi-layer two-dimensional layered structure having a dimension of 0.5 μm to 2 μm, and an electric conductivity of 25000 s/m to 45000 s/m.
Heilongjiang University

Method for modifying surface of non-conductive substrate and sidewall of micro/nano hole with rgo and conditioner employed therein

Non-conductive substrates, especially the sidewalls of micro/nano holes thereof are chemically modified (i.e., chemically grafted) by reduced graphene oxide (rgo). The rgo possesses excellent electrical conductivity and therefore the modified substrates become conductive, so that it can be directly electroplated.
National Chung Hsing University

Method for preparing a polygraphene membrane

A method for preparing a polygraphene membrane includes adding graphite and sodium nitrate into sulfuric acid to form a first mixture; adding potassium permanganate solution into the first mixture to form a second mixture; adding hydrogen peroxide solution to the second mixture to form a mixture including soluble manganese ions; filtering the mixture including soluble manganese ions to form an aqueous suspension; centrifuging the aqueous suspension; performing ultrasonication of the suspension to obtain graphene oxide sheets; acylating the graphene oxide sheets to prepare an acylated graphene oxide sheet; and polymerizing the acylated graphene oxide sheets to prepare polygraphene.. .
King Fahd University Of Petroleum And Minerals

Method of using carbonized material to inhibit bacteria

A method of using a carbonized material to inhibit bacterial growth is provided, wherein the method includes the steps below. First, prove the carbonized material which includes an electrically conductive carbon-containing body, wherein the carbon-containing body is selected from the group consisting of carbon fiber fabric, graphene, and graphene oxide.
Linkwin Technology Co., Ltd.

Systems and methods for in vivo detection of electrophysiological and electrochemical signals

Systems and methods for measuring electrophysiological and electrochemical signals in a portion of a body of a subject are provided. The structure includes an array of electrochemical sensors made of miniaturized multi-layer graphene, an array of electrophysiological electrodes, an integrated front-end readout circuit, and narrow silicon shafts with metal spines.
New York University

Composite including porous graphene and carbon nanotube material

A graphene composite of a porous structure includes a laminate which is laminated by two or more layers of reduced graphene (rgo) in which a plurality of holes are formed and carbon nanotubes present in the interface(s) between the layers of the reduced graphene (rgo) forming the laminate. An electrode made of the composite is also provided.
University-industry Foundation, Yonsei University

Vaccines based on hepatitis b core antigens

The present invention relates to an electrode composition, to the use of the electrode composition as a cathode and to a lithium-ion cell or battery comprising the electrode composition as a cathode. An electrode composition comprising: a lithium intercalated transition metal oxide or composite thereof in an amount in excess of 80 wt %; an electrochemically exfoliated graphene material; and conductive carbon, wherein the combined amount of electrochemically exfoliated graphene material and conductive carbon is in the range 5 to 11 wt % and the weight ratio of electrochemically exfoliated graphene material:conductive carbon is in the range 90:10 to 10:90..
Iqur Limited

Semiconductor device with a steep sub-threshold slope

A method is presented for forming a semiconductor device. The method may include forming a source contact on the semiconductor substrate, forming a drain contact on the semiconductor substrate, and forming a gate structure on the semiconductor substrate between the source and drain contacts, the gate structure including a piezoelectric material having at least one graphene layer..
International Business Machines Corporation

Method for fabricating cu interconnection using graphene

A method for manufacturing an interconnect structure includes providing a substrate structure comprising a substrate, a first dielectric layer on the substrate, and a metal interconnect line formed in the first dielectric layer and extending through to a surface of the substrate; removing a portion of the first dielectric layer on opposite sides of the metal interconnect line to expose a surface of the metal interconnect line and to form a recess; forming a graphene layer on the exposed surface of the metal interconnect line; and forming a second dielectric layer filling the recess and covering the graphene layer. The interconnect structure can prevent metal atoms of the metal interconnect line from diffusion into the first and second dielectric layers..
Semiconductor Manufacturing International (beijing) Corporation

Touch panel and touch display device

A touch panel and a touch display device are disclosed. The touch panel includes a base substrate and a touch electrode layer and a transparent thin film photovoltaic cell disposed on the base substrate.
Hefei Xinsheng Optoelectronics Technology Co., Ltd.

Methods of fabricating quantum dot color film substrates

The present application provides a method of fabricating a quantum dot color film substrate, red and green quantum dots are respectively formulating into red and green quantum dot inks, then formation is performed by an inkjet printing, and a color filter layer is obtained, thereby brightness and color saturation of displays can be increased; simultaneously, the red quantum dot ink and the green quantum dot ink at least have an ink of epoxy resin system therein, when the ink of epoxy resin system is yet cured, a graphene conductive layer is formed thereon to act as an electrode, so that a greatly improved adhesion of the graphene conductive layer and the color filter layer can be obtained. Additionally, to replace ito by utilizing graphene as a conductive layer can alleviate current issues of few ito sources and increasing price, and the graphene has conductivity and high transmittance that make display quality of tft-lcd screen be guaranteed, and an overall thinned and lightened panel be achieved.
Shenzhen China Star Optoelectronics Technology Co.

Novel composite of silica and graphene quantum dots and preparation thereof

The present invention relates to a novel composite of graphene quantum dot and silica. The present invention further relates to a novel one step process for the synthesis of composite of gqd and silica from paper.
Council Of Scientific And Industrial Research

Preparation quantum dot compound spheres coated with graphenesand quantum dot compound spheres coated with graphenes

The present disclosure provides a preparation method of quantum dot compound spheres coated with graphenes and quantum dot compound spheres coated with graphenes. Prepared quantum dot compound spheres coated with graphenes according to the preparation method of quantum dot compound spheres coated with graphenes of the disclosure have dispersion stability, the preparation method is easily processed; quantum dots are protected by water and oxygen proofed graphenes, and dispersity of quantum dots in materials like glue or light resistance materials can be improved by hydrophobicity of graphenes, so that the quantum dot compound spheres coated with graphenes do well in dispersion stability, which can be produced to be quantum dot films, the preparation process of a quantum dot film is simplified..
Shenzhen China Star Optoelectronics Technology Co., Ltd.

Ink for laser imaging

Ink formulations and methods of using the same in laser-imaging are provided. An ink formulation can comprise a graphene-based component, a colour change agent, a binder, and a solvent.
Datalase Ltd.

Uniform dispersing of graphene nanoparticles in a host

The present invention includes a simple, scalable and solventless method of dispersing graphene into polymers, thereby providing a method of large-scale production of graphene-polymer composites. The composite powder can then be processed using the existing techniques such as extrusion, injection molding, and hot-pressing to produce a composites of useful shapes and sizes while keeping the advantages imparted by graphene.
University Of Central Florida Research Foundation, Inc.

Method of manufacturing graphene using metal catalyst

The present invention relates to a method for producing graphene on a face-centered cubic metal catalyst having a plane oriented in one direction, and more particularly to a method of producing graphene on a metal catalyst having the (100) or (111) crystal structure and a method of producing graphene using a catalyst metal foil having a single orientation, obtained by electroplating a metal catalyst by a pulse wave current and annealing the metal catalyst. The invention also relates to a method of producing graphene using a metal catalyst, and more particularly to a method of producing graphene, comprising the steps of: alloying a metal catalyst with an alloying element; forming step structures on the metal catalyst substrate in an atmosphere of a gas having a molecular weight of carbon; and supplying hydrocarbon and hydrogen gases to the substrate.
Src Corporation

Preparation graphene

The invention relates to a preparation method of graphene using graphene oxide. The method consists of the following steps.
Shenzhen Cantonnet Energy Services Co. , Ltd.

Method for the synthesis of graphene oxide

graphene oxide is synthesized by chemical treatment of graphite using only h2so4, kmno4, h2o2 and/or h2o as reagents. Graphene oxide films obtained using the method disclosed herein were characterized using various analytical techniques.
Sri Lanka Institute Of Nanotechnology (pvt) Ltd.

Carbon-based compositions useful for occlusive medical devices and methods of making and using them

An occlusive device and a method of embolizing or occluding a bodily lumen by injecting or otherwise implanting the occlusive device are described. The device includes a polymer or polymer composition and a carbon-based material or nanomaterial such as graphene.
Contraline, Inc.

Energy collection

An electro-hydrodynamic energy collection system may collect and use the energy generated by an electric field. Collection fibers are suspended from a support system.
Ion Power Group Llc

Nonvolatile resistive switching memory device and manufacturing method thereof

A nonvolatile resistive switching memory, comprising an inert metal electrode, a resistive switching functional layer, and an easily oxidizable metal electrode, and characterized in that: a graphene barrier layer is inserted between the inert metal electrode and the resistive switching functional layer, which is capable of preventing the easily oxidizable metal ions from migrating into the inert metal electrode through the resistive switching functional layer under the action of electric field during the programming of the device. The manufacturing method therefore comprises adding a monolayer or multilayer graphene thin film between the inert electrode and the solid-state electrolyte resistive switching functional layer which services as a metal ion barrier layer to stop electrically-conductive metal filaments formed in the resistive switching layer from diffusing into the inert electrode layer during a rram device programming process, eliminating erroneous programming phenomenon occurring during the erasing process, improving device reliability..
Institute Of Microelectronics, Chinese Academy Of Sciences

Light emitting diode chip and preparation method thereof

A method for preparing a light emitting diode chip, the method including: 1) providing a substrate; 2) growing an n-type semiconductor layer, an active layer and a p-type semiconductor layer on the substrate sequentially in that order; 3) forming a step including an upper horizontal end surface, a lower horizontal end surface and a step surface in the n-type semiconductor layer, the active layer and the p-type semiconductor layer; 4) growing a transparent conductive layer on the upper horizontal end surface, and forming an etching hole in the middle of the transparent conductive layer; 5) forming an n electrode on the lower horizontal end surface, and forming a p electrode in the etching hole; 6) growing a metal catalyst layer on the light emitting diode chip; and 7) forming a fluorinated graphene protective layer on the metal catalyst layer.. .
Hc Semitek Corporation

Method of depositing oxidized carbon-based microparticles and nanoparticles

A process for the deposition of nano/microparticles, including at least graphene sheets on a support, comprises the following steps: oxidizing at least the graphene sheets; suspending the nano/microparticles in at least one solution comprising at least water as solvent; spraying, by hydrodynamic instability, each suspension over the substrate; heating the substrate, during each spraying, so as to promote the complete evaporation of the solvent from each part of each suspension sprayed over the substrate at a temperature less than or equal to one and a half times the boiling point of each solution and less than or equal to 200° c.; annealing the deposit after the spraying(s) at a temperature sufficient to deoxidize at least the oxidized graphene present in the deposit and greater than the temperature of the substrate during the deposition step.. .
Thales

Method for manufacturing graphene composite film

A method for manufacturing a graphene composite film includes preparing a zeolite suspension containing zeolite nanocrystals with a concentration of 50-100 ppm and with a particle size of 50-80 nm. The zeolite suspension has a ph value of 11-13.
I-shou University

Super hard components and powder metallurgy methods of making the same

A method of forming a super hard polycrystalline construction comprises forming a liquid suspension of graphene and grains of super hard material, dispersing the graphene and super hard grains in the liquid suspension to form a substantially homogeneous suspension which is dried and from which a pre-sinter assembly is formed and then treated to create a sintered body of polycrystalline super hard material comprising a first fraction of super hard grains and a second fraction of diamond grains, the graphene being at least partially converted to diamond during the sintering stage to form the second fraction. The super hard grains in the first fraction are bonded along at least a portion of the peripheral surface to at least a portion of a plurality of diamond grains in the second fraction, and have a greater average grain size than that of the grains in the second fraction which is between 60 nm to 1 micron..
Element Six (uk) Limited

Urea sequestration compositions and methods

graphene-based materials for sequestering urea from aqueous solutions are provided. The graphene-based materials include graphene aggregates as well as graphene oxides..
Cabot Corporation

Graphene compound, forming graphene compound, and power storage device

A material that can be used in a wide temperature range and a manufacturing method thereof are provided. A graphene compound has a substituted or unsubstituted chain group.
Semiconductor Energy Laboratory Co., Ltd.

Nonvolatile resistive switching memory device and manufacturing method thereof

A nonvolatile resistive switching memory includes an inert metal electrode, a resistive switching functional layer, and an easily oxidizable metal electrode. A graphene intercalation layer with nanopores, interposed between the easily oxidizable metal electrode and the resistive switching functional layer, is capable of controlling the metal ions, which are formed by the oxidation of the easily oxidizable metal electrode during the programming of the device, and only enter into the resistive switching functional layer through the position of the nanopores.
Institute Of Microelectronics, Chinese Academy Of Sciences

Graphene-based solid state devices capable of emitting electromagnetic radiation and improvements thereof

Described herein are solid-state devices based on graphene in a field effect transistor (fet) structure that emits high frequency electromagnetic (em) radiation using one or more dc electric fields and periodic magnetic arrays or periodic nanostructures. A number of devices are described that are capable of generating and emitting electromagnetic radiation..
P-brane, Llc

Electrochemical producing graphene-based supercapacitor electrode from coke or coal

A method of producing graphene sheets from coke or coal powder, comprising: (a) forming an intercalated coke or coal compound by electrochemical intercalation conducted in an intercalation reactor, which contains (i) a liquid solution electrolyte comprising an intercalating agent; (ii) a working electrode that contains the powder in ionic contact with the liquid electrolyte, wherein the coke or coal powder is selected from petroleum coke, coal-derived coke, meso-phase coke, synthetic coke, leonardite, lignite coal, or natural coal mineral powder; and (iii) a counter electrode in ionic contact with the electrolyte, and wherein a current is imposed upon the working electrode and the counter electrode for effecting electrochemical intercalation of the intercalating agent into the powder; and (b) exfoliating and separating graphene planes from the intercalated coke or coal compound using an ultrasonication, thermal shock exposure, mechanical shearing treatment, or a combination thereof to produce isolated graphene sheets.. .
Nanotek Instuments, Inc.

Supercritical fluid production of graphene-based supercapacitor electrode from coke or coal

Provided is a process for producing a graphene-based supercapacitor electrode from a supply of coke or coal powder, comprising: (a) exposing this powder to a supercritical fluid for a period of time in a pressure vessel to enable penetration of the supercritical fluid into internal structure of the coke or coal; wherein the powder is selected from petroleum coke, coal-derived coke, meso-phase coke, synthetic coke, leonardite, anthracite, lignite coal, bituminous coal, or natural coal mineral powder, or a combination thereof; (b) rapidly depressurizing the supercritical fluid at a fluid release rate sufficient for effecting exfoliation and separation of the coke or coal powder to produce isolated graphene sheets, which are dispersed in a liquid medium to produce a graphene suspension; and (c) shaping and drying the graphene suspension to form the supercapacitor electrode having a specific surface area greater than 200 m2/g.. .
Nanotek Instruments, Inc.

Humic acid-based supercapacitors

A supercapacitor electrode comprising a mixture of graphene sheets and humic acid, wherein humic acid occupies 0.1% to 99% by weight of the mixture and the graphene sheets are selected from a pristine graphene material having essentially zero % of non-carbon elements, or a non-pristine graphene material having 0.001% to 5% by weight of non-carbon elements wherein said non-pristine graphene is selected from graphene oxide, reduced graphene oxide, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, hydrogenated graphene, nitrogenated graphene, chemically functionalized graphene, or a combination thereof; and wherein said mixture has a specific surface area greater than 500 m2/g.. .
Nanotek Instruments, Inc.

Production of graphene-based supercapacitor electrode from coke or coal using direct ultrasonication

Provided is a method of producing graphene-based supercapacitor electrode from a supply of coke or coal powder. The method comprises: (a) dispersing particles of the coke or coal powder in a liquid medium containing therein an optional surfactant or dispersing agent to produce a suspension or slurry, wherein the coke or coal powder is selected from petroleum coke, coal-derived coke, meso-phase coke, synthetic coke, leonardite, anthracite, lignite coal, bituminous coal, or natural coal mineral powder, or a combination thereof; (b) exposing the suspension or slurry to ultrasonication at an energy level for a sufficient length of time to produce a graphene suspension having isolated graphene sheets dispersed in the liquid medium; and (c) shaping and drying the graphene suspension into the supercapacitor electrode in a film, filament, rod, or tube form that is porous and has a specific surface area greater than 200 m2/g..
Nanotek Instruments, Inc.

Methods of analyzing carbon nanostructures, methods of preparation of analytes from carbon nanostructures, and systems for analyzing carbon nanostructures

Provided herein is a method determining the concentration of impurities in a carbon material, comprising: mixing a flux and a carbon material to form a mixture, wherein the carbon material is selected from the group consisting of graphene, carbon nanotubes, fullerene, carbon onions, graphite, carbon fibers, and a combination thereof; heating the mixture using microwave energy to form fused materials; dissolution of the fused materials in an acid mixture; and measuring the concentration of one or more impurities.. .
King Abdullah University Of Science And Technology

Process for producing monolithic film of integrated highly oriented halogenated graphene sheets or molecules

A process for producing an integrated layer (10 nm to 500 μm) of highly oriented halogenated graphene sheets, comprising: (a) preparing a graphene oxide (go) dispersion having go sheets dispersed in a fluid medium; (b) dispensing and depositing a layer of go dispersion onto a surface of a supporting substrate under a shear stress condition that induces orientation of go sheets to form a wet layer of go on the supporting substrate; (c) introducing a halogenating agent into the wet layer of graphene oxide and effecting a chemical reaction between the halogenating agent and go sheets to form a wet layer of halogenated graphene, c6zxoy, wherein z is a halogen element selected from f, cl, br, i, or a combination thereof, x=0.01 to 6.0, y=0 to 5.0, and x+y≦6.0; and (d) removing the fluid medium.. .
Nanotek Instruments, Inc.

Supercritical fluid process for producing graphene from coke or coal

Provided is a process for producing isolated graphene sheets from a supply of coke or coal powder containing therein domains of hexagonal carbon atoms and/or hexagonal carbon atomic interlayers. The process comprises: (a) subjecting the supply of coke or coal powder to a supercritical fluid at a first temperature and a first pressure for a first period of time in a pressure vessel and then (b) rapidly depressurizing the supercritical fluid at a fluid release rate sufficient for effecting exfoliation and separation of the coke or coal powder to produce isolated graphene sheets, wherein the coke or coal powder is selected from petroleum coke, coal-derived coke, meso-phase coke, synthetic coke, leonardite, anthracite, lignite coal, bituminous coal, or natural coal mineral powder, or a combination thereof..
Nanotek Instruments, Inc.

Thin film diffusion barrier

A rubber substrate has a material diffusion barrier, and a method produces the same. In an embodiment, a method for producing a material diffusion barrier on a rubber substrate include exposing the rubber substrate to a cationic solution to produce a cationic layer on the rubber substrate.
The Texas A&m University System

Method of fabricating graphene-based/algal biofilm electrode for application in a biophotovoltaic device

A method of preparing an electrode for use in a biophotovoltaic device, comprising the steps of: coating a self-assembled film on a substrate using langmuir-blodgett technique; and immersing the coated substrate into an microalgae culture, followed by incubating thereof to grow microalgae thereon hence obtaining a biofilm, characterised in that the self-assembled film is derived from graphene.. .
University Of Malaya

Method for the preparation of anodes for lithium batteries

A method for preparing an electrode for use in lithium batteries and the resulting electrodes are described the method comprises coating a slurry of silicon, sulfur doped graphene and polyacrylonitrile on a current collector followed by sluggish heat treatment.. .

Optimized electrode design for graphene based anodes

A negative electrode of a lithium ion electrochemical cell, the negative electrode including an active electrode material that includes a first component and a second component. The first component may include graphene, silicon, or a combination thereof.
Sinode Systems, Inc.

Graphene structure

A graphene structure of an embodiment includes multilayer graphene laminated with graphene sheets, and a first interlayer material being present between the graphene sheets of the multilayer graphene and containing a multimer of molybdenum oxide.. .
Kabushiki Kaisha Toshiba

Manufacturing coa substrate

The disclosure provides a manufacturing method for coa substrate: utilizing pedot, pprodot or pedot derivatives with or without doping with graphene, or pprodot derivatives replaces traditional ito to be conductive materials of pixel electrodes; quantum dots can be modified by prodot derivatives or edot derivatives which including carboxyl group, and quantum dot color filters of red filter layers, green filter layer and blue filters layers comprised on the tft substrate are formed by the method of electric chemical deposition based on a property of the aforementioned two being able to polymerize under influences of electric field and pixel electrode patterns on the tft substrate. Therefore, zero waste can be achieved in quantum dots, a usage of quantum dots can be decreased, indium usage can be decreased, researching and development cost can be reduced, and the circumstances can be protected, furthermore, the qds color film having the better bonding strength bonds the counter electrode layer through chemical bond, and avoids adverse results as a peel is caused by insufficient bonding strength between photoresist and substrate..
Shenzhen China Star Optoelectronics Technology Co. Ltd.

High-performance solid-state supercapacitors and microsupercapacitors derived from printable graphene inks

Solid-state supercapacitors and microsupercapacitors comprising printed graphene electrodes and related methods of preparation.. .

Method for removing thiophene from diesel fuel with a graphene oxide adsorbent

The present disclosure provides a method for removing sulfur compounds from a fuel containing sulfur compounds. The method includes contacting the fuel with an adsorbent that comprises a carbonaceous material doped with nanoparticles of aluminum oxide to reduce the concentrations of the sulfur compounds.
King Fahd University Of Petroleum And Minerals

Single crystal graphene or polycrystalline graphene matrix composite containing carbon-based fillers

A process for producing a unitary graphene matrix composite, the process comprising: (a) preparing a graphene oxide gel having graphene oxide molecules dispersed in a fluid medium, wherein the graphene oxide gel is optically transparent or translucent; (b) mixing a carbon or graphite filler phase in said graphene oxide gel to form a slurry; (c) dispensing said slurry onto a surface of a supporting substrate or a cavity of a molding tool; (d) partially or completely removing the fluid medium from the slurry to form a composite precursor; and (e) heat-treating the composite precursor to form the unitary graphene composite at a temperature higher than 100° c. This composite exhibits a combination of exceptional thermal conductivity, electrical conductivity, mechanical strength, surface hardness, and scratch resistance..
Nanotek Instruments, Inc.

Enhanced conductivity, adhesion and environmental stability of printed graphene inks with nitrocellulose

graphene ink compositions comprising nitrocellulose and related methods of use comprising either thermal or photonic annealing.. .
Northwestern University

Capsules having surfactant tethered outer shells and methods for making same

Microcapsules are disclosed that have a core composition encapsulated within a polymer wall, and an inorganic shell connected to an exterior surface of the polymer wall by a surfactant. The inorganic shell has a cation attracted to the surfactant and an anion or anion equivalent chemically bonded to the cation to form the shell or has the metal portion of a metal-containing compound attracted to the surfactant to form the shell.
Microtek Laboratories Inc.

Graphene based growing medium and method

The present invention provides for a growing medium having a mix of soil, graphene, and/or graphene oxide. In at least one example, soil is combined with single or few layer graphene.

Nanoporous graphene nanowires and producing methods and applications of same

A material of porous graphene nanowires with a pore-rich structure is formed by synthesis of catalyst nanowires for porous graphene nanowires, chemical vapor deposition of a carbon source on the catalysts to grow graphene, removal of residual catalyst, and formation of the porous graphene nanowires. The porous graphene nanowires can be used as an electrochemical energy storage material, carriers of catalysts, a conductive material, an adsorption material, a desorption material, or the like..
Hk Graphene Technology Corporation

Apparatus and preparing graphene by exfoliation of graphite using a pulsed or cavitating waterjet

A graphene preparing apparatus for exfoliating graphite includes a high-pressure water pump for generating a high-pressure flow of water, a waterjet nozzle for receiving the water and for generating a pulsed or cavitating waterjet, a graphite supply vessel having a supply duct for supplying graphite powder, an exfoliation chamber that has a first inlet for receiving the waterjet and a second inlet for receiving the graphite powder, an outlet through which a graphite slurry is expelled from the exfoliation chamber, a filtering unit downstream of the exfoliation chamber for separating graphene from the slurry and a graphene collection tank for collecting the graphene.. .
Vln Advanced Technologies Inc.

Titanium diboride nanotubes for trapping gases in lithium ion batteries

A lithium ion battery includes an electrolyte maintained in a separator, the separator having two sides; a negative electrode of lithium titanate (li4ti5o12) disposed on one side of the separator; a negative current collector associated with the negative electrode; a positive electrode disposed on an opposite side of the separator; and a positive current collector associated with the positive electrode. The lithium ion battery further includes gas traps to trap gases in the battery, wherein the gas traps include titanium diboride (tib2) nanotubes.
Gm Global Technology Operations Llc

Carbon-coated active particles and processes for their preparation

A process for the preparation of carbon-coated particles, where the particles include an electrochemically active material. The process includes the steps of emulsion polymerization, drying and thermally treating the polymer to obtain a nano-layer of carbon on the particles, where the carbon layer includes fibers and nitrogen-containing polyaromatics have a graphene-like structure.
Sony Corporation

Method for fabricating nanopillar solar cell using graphene

A method of manufacturing a semiconductor device includes providing a substrate structure. The substrate structure includes a conductive layer and a plurality of nanopillars spaced apart from each other overlying the conductive layer.
Semiconductor Manufacturing International (beijing) Corporation

Electromagnetic wave detector and electromagnetic wave detector array

An electromagnetic wave detector includes: a substrate; an insulating layer provided on the substrate; a graphene layer provided on the insulating layer; a pair of electrodes provided on the insulating layer, with the graphene layer being interposed therebetween; and buffer layers interposed between the graphene layer and the electrodes to separate the graphene layer and the electrodes from each other. The electromagnetic wave detector array includes arrayed electromagnetic wave detectors that are the same as or different from each other..
Mitsubishi Electric Corporation

Method and device for finfet with graphene nanoribbon

A method for forming a semiconductor device includes providing a substrate structure, which has a semiconductor substrate and a semiconductor fin on the substrate. The method also includes forming a catalytic material layer overlying the semiconductor fins, and forming an isolation region covering the catalytic material layer in a lower portion of the semiconductor fins.
Semiconductor Manufacturing International (beijing) Corporation

Method for capping cu layer using graphene in semiconductor

An interconnect structure includes a substrate, a dielectric layer on the substrate, a metal interconnect layer in the dielectric layer and in contact with the substrate, the metal interconnect layer having an upper surface flush with an upper surface of the dielectric layer, and a graphene layer on the metal interconnect layer. The graphene layer insulates a metal from air and prevents the metal from being oxidized by oxygen in the air, thereby increasing the queue time for the cmp process and the device reliability..
Semiconductor Manufacturing International (beijing) Corporation

Flexible sensor

Systems, apparatuses, and/or methods to manufacture and/or implement a sensor film, a composite electrode, and/or a computing device such as a flexible device. The sensor film may include a random network of metal lines and graphene interconnecting the metal lines.

Thin film plasmonic optical modulator

A plasmon-based optical modulator comprises a substrate, a layer of high reflectivity material disposed over the substrate, a relatively thin dielectric layer disposed over a top major surface of the layer of high reflectivity material and a plurality of graphene strips disposed in parallel across a top major surface of the relatively thin dielectric layer, each graphene strip exhibiting a predetermined width w, with adjacent strips separated by a predetermined spacing s. A first electrical contact is coupled to the plurality of graphene strips and a second electrical contact is coupled to the layer of high reflectivity material, where the values of w, s, and voltage applied between the first and second electrical contacts determines a resonant wavelength of the plasmon-based optical modulator, with changes in the applied voltage changing between absorption and non-absorption of an applied optical input signal..
Cornell University

Growth graphene

The present invention provides a growth method of grapheme, which at least comprises the following steps: s1: providing an insulating substrate, placing the insulating substrate in a growth chamber; s2: heating the insulating substrate to a preset temperature, and introducing a gas containing catalytic element into the growth chamber; s3: feeding carbon source into the growth chamber and growing a graphene thin film on the insulating substrate. The present invention adopts a catalytic manner of introducing catalytic element, and rapid grows a high quality graphene on the insulating substrate, which avoids the transition process of the graphene, enables to improve the production yield of the graphene, reduces the growth cost of the graphene, and thus the mass production can be facilitated.
Shanghai Institute Of Microsystem And Information Technology, Chinese Academy Of Sciences

Spacecraft structures incorporating graphene and operation thereof

Functional components of spacecraft structures can be subject to detrimental impacts by energetic particles produced from an electric propulsion system. A graphene coating applied to a functional component can maintain electrical conductivity upon a surface of the functional component, thereby allowing charge dissipation to take place, while also resisting sputtering erosion resulting from impacts of the energetic particles.
Lockheed Martin Corporation

Structural element with heater for a vehicle, manufacturing method and operating method

A structural element of a means of transport comprising a resistive heater for defrosting operations, wherein the resistor has conduction terminals coupled to respective terminals of a voltage generator adapted to cause a current flux through the resistor. The resistor includes one or more conductive paths of partially reduced graphene oxide or partially oxidized graphene configured to generate, when travelled by the current flux, heat by joule effect..
Leonardo S.p.a.

Graphene membrane film for solvent purification, producing same, and solvent purification system using same

Described embodiments include a graphene membrane film for solvent purification and related method, and a solvent purification system using same. The graphene membrane film for solvent purification is formed having a plurality of stacked graphene plate-shaped flakes, and at least one pair of the plurality of stacked graphene plate-shaped flakes comprises a physical bond or a chemical bond connecting layers.
Soulbrain Co., Ltd.

2d material super capacitors

Devices and methods are described relating to capacitor energy storage devices that are small in size and have a high energy stored to volume ratio. The capacitor devices include 2d material electrodes.
Synopsys, Inc.

Liquid crystal display apparatus

A liquid crystal display apparatus is provided. The liquid crystal display apparatus includes a graphene led backlight source, a first polarizing film, a first substrate, a liquid crystal layer, a second substrate and a second polarizing film.
Shenzhen China Star Optoelectronics Technology Co. Ltd.

Electrochemical production of graphene sheets from coke or coal

A method of producing graphene sheets from coke or coal powder, comprising: (a) forming an intercalated coke or coal compound by electrochemical intercalation conducted in an intercalation reactor, which contains (i) a liquid solution electrolyte comprising an intercalating agent; (ii) a working electrode that contains the powder in ionic contact with the liquid electrolyte, wherein the coke or coal powder is selected from petroleum coke, coal-derived coke, meso-phase coke, synthetic coke, leonardite, lignite coal, or natural coal mineral powder; and (iii) a counter electrode in ionic contact with the electrolyte, and wherein a current is imposed upon the working electrode and the counter electrode for effecting electrochemical intercalation of the intercalating agent into the powder; and (b) exfoliating and separating graphene planes from the intercalated coke or coal compound using an ultrasonication, thermal shock exposure, mechanical shearing treatment, or a combination thereof to produce isolated graphene sheets.. .
Nanotek Instruments, Inc.

Use of a mineral having perovskite structure in vinyl aromatic polymer foam

The invention relates to the use of a mineral having perovskite structure in vinyl aromatic polymer foam, i) for decreasing the thermal conductivity, ii) for increasing the mechanical properties (namely compressive strength and bending strength), or iii) for improving the self-extinguishing properties of the foam. The polymer foam further comprises one or more athermanous additives selected from a) powder inorganic additive selected from powders of silica and calcium phosphate, b) powder carbonaceous additive selected from powders of graphite, carbon black, petroleum coke, graphitized carbon black, graphite oxides, and graphene, and c) powder geopolymer and powder geopolymer composite..
Synthos S.a.

Graphene oxide/magnesium oxide nanocomposites as superior sorbents for methylene blue removal from aqueous solutions

The present invention includes a composition, method of making and method of using a composite for the removal of waste from a wastewater or a waste stream wherein the composite comprises of graphene oxide and magnesium oxide nanoparticles at a ratio of 10:1 to 1:10 weight to weight.. .
Southern Methodist University

Ketyl radical induced photoreduction of graphene oxide; grafting of metal nanoparticles on graphene by photoreduction

Photoreduction of graphene oxide, by uv-generated ketyl radicals, to graphene. The photoreduction is versatile and can be carried out in solution, solid-state, and even in polymer composites.
Case Western Reserve University

Direct ultrasonication production of graphene sheets from coke or coal

Provided is a method of producing isolated graphene sheets from a supply of coke or coal powder containing therein domains of hexagonal carbon atoms and/or hexagonal carbon atomic interlayers. The method comprises: (a) dispersing particles of the coke or coal powder in a liquid medium containing therein an optional surfactant or dispersing agent to produce a suspension or slurry, wherein the coke or coal powder is selected from petroleum coke, coal-derived coke, meso-phase coke, synthetic coke, leonardite, anthracite, lignite coal, bituminous coal, or natural coal mineral powder, or a combination thereof; and (b) exposing the suspension or slurry to ultrasonication at an energy level for a sufficient length of time to produce the isolated graphene sheets..
Nanotek Instruments, Inc.

Multifunctional and stable nano-architectures containing nanocarbon and nano- or micro structures and a calcined hydrotalcite shell

Methods for making a multilevel core-shell structure having a core/graphene-based shell structure are described. A method for making a core/graphene-based shell structure can include obtaining a composition that includes core nano- or microstructures and graphene-based structures having at least a portion of a surface coated with a curable organic material, where the core nano- or microstructures and graphene-based structures are dispersed throughout the composition and subjecting the composition to conditions that cure the organic material and allow the graphene-based structures to self-assemble around the core nano- or microstructures to produce a core/graphene-based shell structure that has a graphene-based shell encompassing a core nano- or microstructure..
Sabic Global Technologies B.v.

Lithium ion conducting protective film and use

A lithium ion conducting protective film produced using a layer-by-layer assembly process. The lithium ion conducting protective film is assembled on a substrate by a sequential exposure of the substrate to a first poly(ethylene oxide) (peo) layer including a cross-linking silane component on the first side of the substrate, a graphene oxide (go) layer on the first peo layer, a second poly(ethylene oxide) (peo) layer including a cross-linking silane component on the go layer and a poly(acrylic acid) (paa) layer on the second peo layer.
Massachusetts Institute Of Technology

Reram using stack of iron oxide and graphene oxide films

There is provided a non-volatile memory device comprising: a substrate; a lower electrode disposed on the substrate; a resistance layer disposed on the lower electrode; and an upper electrode disposed on the resistance layer, wherein the resistance layer include a stack of a graphene oxide film and an iron oxide film, wherein a resistance value of the resistance layer varies based on a voltage applied to the upper electrode.. .
Gwangju Institute Of Science And Technology

Low-temperature polycrystalline silicon thin film transistor, and manufacturing fabricating the same, array substrate, display panel and display device

Disclosed are a low-temperature polycrystalline silicon thin film transistor (ltps tft), a method for fabricating the same, an array substrate, a display panel, and a display device. The ltps tft includes an active layer, a source, a drain, a gate, and a gate insulating layer which are arranged on a substrate.
Boe Technology Group Co., Ltd.

Patterning graphene with a hard mask coating

Embodiments of the disclosed technology include patterning a graphene sheet for biosensor and electronic applications using lithographic patterning techniques. More specifically, the present disclosure is directed towards the method of patterning a graphene sheet with a hard mask metal layer.
Nanomedical Diagnostics, Inc.

Providing a temporary protective layer on a graphene sheet

Embodiments of the disclosed technology include patterning a graphene sheet for biosensor and electronic applications using lithographic patterning techniques. More specifically, the present disclosure is directed towards the method of patterning a graphene sheet with a hard mask metal layer.
Nanomedical Diagnostics, Inc.

Depositing a passivation layer on a graphene sheet

Embodiments of the disclosed technology include depositing a passivation layer onto a surface of a wafer that may include a graphene layer. The passivation layer may protect and isolate the graphene layer from electrical and chemical conditions that may damage the graphene layer.
Nanomedical Diagnostics, Inc.

Methods for forming structures by generation of isolated graphene layers having a reduced dimension

Graphite-based devices with a reduced characteristic dimension and methods for forming such devices are provided. One or more thin films are deposited onto a substrate and undesired portions of the deposited thin film or thin films are removed to produce processed elements with reduced characteristic dimensions.
Solan, Llc

Contaminant detection device and method

A device for measuring ph levels and contaminant concentration includes an electrode assembly that is electrically coupled to a control unit. The electrode assembly includes a fluid first contact electrically coupled to a reference electrode, a second contact electrically coupled to a working electrode, and a third contact electrically coupled to a counter electrode.
Uwm Research Foundation, Inc.

Chelation directed c-h activation reactions catalyzed by solid-supported palladium(ii) catalysts

Chelation directed c—h activation reactions that are catalyzed by pd(11) on multi-walled carbon nanotubes (mwcnt), single-walled carbon nanotubes (swcnt), or graphene are provided. The reactions are used to directly and regioselectively or regiospecifically functionalize specific c—h bonds, e.g.
Virginia Commonwealth University

Quinolines, polyquinolines, molecular segments of fullerenes and graphene nanoribbons, and graphene nanoribbons and methods of their synthesis

Quinolines, polyquinolines, polybenzoquinolines, molecular segments of fullerenes and graphene nanoribbons, and graphene nanoribbons and processes for producing such materials are provided. The processes utilize a form of an aza-diels-alder (povarov) reaction to first form quinolines and/or polyquinolines.
The Regents Of The University Of California

Systems and methods for transferring graphene

The present disclosure is directed towards systems and methods for transferring graphene from the surface of one substrate to another. In one particular embodiment, the graphene layer is grown on a surface of a first substrate, where the bottom of the first substrate is then affixed to the surface of a second substrate.
Nanomedical Diagnostics, Inc.

Electrode material comprising graphene-composite materials in a graphite network

A durable electrode material suitable for use in li ion batteries is provided. The material is comprised of a continuous network of graphite regions integrated with, and in good electrical contact with a composite comprising graphene sheets and an electrically active material, such as silicon, wherein the electrically active material is dispersed between, and supported by, the graphene sheets..
Northwestern University

Flexible semiconductor device with graphene tape

A flexible semiconductor device includes a first tape having bonding pads and conductive traces formed. A semiconductor die having a bottom surface is attached to the first tape and electrically connected to the bond pads by way of electrical contacts.
Nxp Usa, Inc.

Semiconductor device and manufacturing semiconductor device

A semiconductor device including a semiconductor chip and a heat dissipation unit (heat sink) is configured as follows. The heat dissipation unit (heat sink) includes a resin tape, and a fin constituted of a graphite sheet and protruding from the resin tape.
Renesas Electronics Corporation

Metal-graphene heterojunction metal interconnects, forming the same, and semiconductor device including the same

Disclosed herein are a metal-graphene heterojunction metal interconnect, a method of forming the same, and a semiconductor device including the same. The method includes: a) forming a carbon source layer by depositing a carbon source on a top surface of a substrate; b) forming a metal catalyst layer by depositing a metal catalyst on the carbon source layer; and c) carrying out heat treatment on the substrate comprising the carbon source layer and the metal catalyst layer.
Gwangju Institute Of Science And Technology

Graphene paper and a process for making graphene paper and a graphene electrode

Described are processes for making graphene pellet (gp) with a three-dimensional structure. The process includes forming a nickel pellet from nickel powder to function as a catalyst for graphene growth, exposing the nickel pellet to a hydrocarbon under conditions sufficient to grow graphene, and etching nickel from graphene with an acid resulting in a graphene pellet.
University Of Cincinnati

Detector structure for electromagnetic radiation sensing

An apparatus with at least two electromagnetic radiation sensor cells that include graphene as an electromagnetic radiation absorbing material and electrical connections between the at least two sensor cells. The electrical connections are at least partially made of graphene..
Nokia Technologies Oy

Compositions and methods for corrosion inhibitor monitoring

graphene quantum dots are functionalized by covalently bonding a corrosion inhibitor molecule thereto. In a useful method, a corrosion inhibitor compound is blended with a graphene quantum dot-tagged corrosion inhibitor compound, and the blend is applied to a metal surface, such as the interior of a carbon steel pipe.
Ecolab Usa Inc.

Hydrophobic coatings (as amended)

A hydrophobic or superhydrophobic polymer composite comprising a lattice of poiycyclic aromatic hydrocarbons such as reduced graphene oxide (rgo) modified with at least one siloxane polymer and a method of preparation thereof is disclosed. A method of coating a material comprising immersing a material in a coating solution made from the rgo and siloxane polymer is also disclosed..
Agency For Science, Technology And Research

Paraffin suppressant compositions, and methods of making and using

Disclosed herein are graphene quantum dot tagged paraffin suppressants such as graphene tagged paraffin inhibitors and paraffin dispersants and methods of making and using thereof. The graphene quantum dots are covalently bound to residues of paraffin inhibitors or dispersed with paraffin dispersants to form tagged paraffin suppressants active in inhibiting paraffin crystallization or dispersing crystalized paraffin wax in crude oils and compositions comprising crude oils.
Ecolab Usa Inc.

Fluorescent water treatment compounds and use

Disclosed herein are graphene quantum dot tagged water source treatment compounds or polymers, and methods of making and using. Also described herein are tagged compositions including an industrial water source treatment compound or polymer combined with a graphene quantum dot tagged water source treatment compound or polymer.
Ecolab Usa Inc.

Smooth-surfaced graphite membrane and producing same

A graphite membrane includes graphene layers, wherein the graphite membrane is an independent graphite membrane having a thickness of 10 nm to 12 μm, an area of 5×5 mm2 or more, an electrical conductivity of 8000 s/cm or more, and an arithmetic average roughness ra of 200 nm or less on a surface of the graphite membrane.. .
Kaneka Corporation

Metal adsorbent and a making thereof

A metal adsorbent that includes silver-decorated graphene nano-platelets and a polymer matrix that comprises polyamide, wherein the metal adsorbent is a highly porous material with a specific surface area of 200 to 300 m2/g and an average pore size of 50 to 100 Å, which effective removes heavy metals and cations from a liquid. Various embodiments of the metal adsorbent and a method of making thereof are also provided..
King Fahd University Of Petroleum And Minerals

Graphene-metal hybrid foam-based electrode for an alkali metal battery

Provided is a lithium or sodium metal battery having an anode, a cathode, and a porous separator and/or an electrolyte, wherein the anode contains a graphene-metal hybrid foam composed of multiple pores, pore walls, and a lithium- or sodium-attracting metal residing in the pores; wherein the metal is selected from au, ag, mg, zn, ti, na (or li), k, al, fe, mn, co, ni, sn, v, cr, or an alloy thereof and is in an amount of 0.1% to 90% of the total hybrid foam weight or volume, and the pore walls contain single-layer or few-layer graphene sheets, wherein graphene sheets contain a pristine graphene or non-pristine graphene selected from graphene oxide, reduced graphene oxide, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, hydrogenated graphene, nitrogenated graphene, doped graphene, chemically functionalized graphene, or a combination thereof.. .
Nanotek Instruments, Inc.

Alkali metal battery having an integral 3d graphene-carbon-metal hybrid foam-based electrode

Provided is a lithium or sodium metal battery having an anode, a cathode, and a porous separator and/or an electrolyte, wherein the anode contains an integral 3d graphene-carbon hybrid foam composed of multiple pores, pore walls, and a lithium-attracting metal residing in the pores; wherein the metal is selected from au, ag, mg, zn, ti, na, k, al, fe, mn, co, ni, sn, v, cr, or an alloy thereof and is in an amount of 0.1% to 50% of the total hybrid foam weight or volume, and the pore walls contain single-layer or few-layer graphene sheets chemically bonded by a carbon material having a carbon material-to-graphene weight ratio from 1/200 to 1/2, wherein graphene sheets contain a pristine graphene or non-pristine graphene selected from graphene oxide, reduced graphene oxide, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, hydrogenated graphene, nitrogenated graphene, doped graphene, chemically functionalized graphene, or a combination thereof.. .
Nanotek Instruments, Inc.

Graphene-semiconductor based wavelength selective photodetector for sub-bandgap photo detection

graphene photodetectors capable of operating in the sub-bandgap region relative to the bandgap of semiconductor nanoparticles, as well as methods of manufacturing the same, are provided. A photodetector can include a layer of graphene, a layer of semiconductor nanoparticles, a dielectric layer, a supporting medium, and a packaging layer.
The University Of Hong Kong

Graphene/porous iron oxide nanorod composite and manufacturing method thereof

The present invention discloses a graphene/porous iron oxide nanorod composite and a method for preparing the same. The composite includes graphene and fe2o3 nanoparticles loaded on the graphene.
Soochow University

Graphene-based nanosensor for identifying target analytes

A microdevice for monitoring a target analyte is provided. The microdevice can include a field effect transistor comprising a substrate, a gate electrode, and a microfluidic channel including graphene.
The Trustees Of Columbia University In The City Of New York

Molecular detection apparatus and molecular detection method

A molecular detection apparatus according to an embodiment includes: a distributor which ionizes a target containing substances to be detected, applies voltage to ionized substances, and extracts the substances to be detected according to a time-of-flight based on the speed; a detector which detects the substance to be detected dropped from the distributor; and a discriminator which discriminates the substance to be detected. The detector includes: a plurality of detection units including field effect transistors using graphene layers; and a plurality of organic probes which are provided on the graphene layers, and at least some of which have different bond strengths with the substances to be detected.
Kabushiki Kaisha Toshiba

Integration of monolayer graphene with a semiconductor device

The integration of monolayer graphene with a semiconductor device for gas sensing applications involves obtaining a cmos device that is prepared to receive monolayer graphene channels. After population of the monolayer graphene channels on the cmos device, electrical contacts are formed at each end of the monolayer graphene channels with interconnect vias having sidewalls angled at less then 90°.
Board Of Regents, The University Of Texas System

Piezoresistive device

The present invention relates to piezoresistive devices and pressure sensors incorporating such devices. At its most general, the invention provides a piezoresistive device, comprising a piezoresistive material positioned between an upper conductive layer and a lower conductive layer, wherein the piezoresistive material comprises carbon nanoparticles (most preferably graphene nanoplatelets, graphene or carbon nanotubes) dispersed in a polymer matrix material.
Haydale Graphene Industries Plc

Anti-corrosion composite layers

An anti-corrosion composite layer includes a first anti-corrosion coating coated on a substrate, and a second anti-corrosion coating coated on the first anti-corrosion coating. The first anti-corrosion layer includes a plurality of first graphene nanosheets and a first carrier resin, wherein a surface of each the first graphene nanosheet has a first lipophilic functional group for chemically bonding to the first carrier resin, the first lipophilic functional group is selected from carboxyl, epoxy and amino.
Enerage Inc.

Stretchable electrically conductive layer formation by aerosol jet printing on flexible substrate

Methods of forming an electrically conductive layer on a flexible substrate, such as a stretchable electrode, by aerosol jet printing on the flexible substrate while the substrate is strained. In general, a stretchable substrate is initially deformed so that a first surface thereof is under tension.
Duke University

Graphene powder, electrode paste for lithium ion battery and electrode for lithium ion battery

The present invention relates to preparation of a highly dispersible graphene powder. Further, the present invention includes providing an electrode for a lithium ion battery having good output characteristics and cycle characteristics by utilizing a highly dispersible graphene powder.
Toray Industries, Inc.

Methods of graphene growth and related structures

A method and structure for providing uniform, large-area graphene by way of a transfer-free, direct-growth process. In some embodiments, a sam is used as a carbon source for direct graphene synthesis on a substrate.
National Taiwan University





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