Patent
US 9,105,378GRAPHENE TRANSPARENT ELECTRODE AND METHOD FOR MANUFACTURING THE SAME
Woon Chun Kim
US
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Patent
Atlas literature
Patent
US 9,105,378Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a block diagram schematically showing a process for manufacturing a graphene transparent electrode according to the present invention; and 4
FIG. 2 is a flow chart schematically showing a process for manufacturing a graphene transparent electrode according to a preferred embodiment of the p re sent …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method for manufacturing a graphene transparent electrode, comprising: providing a graphene oxide solution: forming a metal thin film on a glass substrate; coating the graphene oxide solution on the metal thin film, followed by drying; primarily reducing the obtained graphene oxide by using a reducing agent, to obtain reduced graphene oxide; secondarily reducing the reduced graphene oxide by heat treatment under the inert atmosphere, to form a reduced layer; compressing a transparent film on the reduced layer formed on the metal thin film; and separating the compressed transparent film and the reduced la v er from the glass substrate by etching the metal thin film by an etching solution.
The method as set forth in claim 1, wherein the metal is copper, aluminum, nickel, iron, or zinc.
The method as set forth in claim 1, wherein the metal thin film has a thickness of 10pi m or less.
The method as set forth in claim 1, wherein a surface of the glass substrate is subjected to hydrophilic treatment by using a mixture of H₂SO₄ and H₂ 02. US Patent App l. No. 13/656854
The method as set forth in claim 1, wherein the graphene oxide solution contains metal nanowires or metal nano-particles in a content of 50 wt % or less based on the complet e gra phene oxide solution.
The method as set forth in claim 1, wherein the coating of the graphene oxide solution is performed by any one method selected from spray coating, dip coating, spin coating, screen coating, offset coating, in kj et printing, pad printing, knife coating, kiss coating, gravure coating, brushing, ultrasonic fine spray coating, and spray-mist spray coating.
The method as set forth in claim 1, wherein the reducing agent is a gas or liquid phase of HI or NH₂NH2.
The method as set forth in claim 1, wherein the inert gas is nitrogen or argon.
The method as set forth in claim 1, wherein the heat treatment is performed at a temperature of 100 to 1,000 0C.
The method as set forth in claim 1, wherein the graphene oxide solution is an aqueous dispersion or an organic dispersion.
The method as set forth in claim 1, wherein a material for the transparent film is polyethylene terephthalate, polyacrylate, or polycarbonate.
The method as set forth in claim 1, wherein the etching solution is FeC l 3 or HNO3.
A graphene transparent electrode having conductivity of 1 kQ/ci or less, which is manufactured according to the method as set forth in claims 1. US Patent App l. No. 13/656854 Page 4 withdrawn
Layer stacks claimed or described, ordered top of device to substrate.
graphene transparent electrode
Materials described outside the worked examples.
graphene oxide solution
reduced graphene oxide (graphene transparent electrode)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
durability in a graphene oxide coating procedure, a primary reduction procedure, and a seconda r y reduction procedure, and thus, a thickness thereof is 1 0/m or less, and specifically 0.1 to 10pm. 5 Then, the graphene oxide solution is coated on the metal thin
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
sheet conductivity of graphene transparent electrode | — | reduced graphene oxide (graphene transparent electrode) |
Temperature | ≤ 1 °C |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,105,378Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a block diagram schematically showing a process for manufacturing a graphene transparent electrode according to the present invention; and 4
FIG. 2 is a flow chart schematically showing a process for manufacturing a graphene transparent electrode according to a preferred embodiment of the p re sent …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method for manufacturing a graphene transparent electrode, comprising: providing a graphene oxide solution: forming a metal thin film on a glass substrate; coating the graphene oxide solution on the metal thin film, followed by drying; primarily reducing the obtained graphene oxide by using a reducing agent, to obtain reduced graphene oxide; secondarily reducing the reduced graphene oxide by heat treatment under the inert atmosphere, to form a reduced layer; compressing a transparent film on the reduced layer formed on the metal thin film; and separating the compressed transparent film and the reduced la v er from the glass substrate by etching the metal thin film by an etching solution.
The method as set forth in claim 1, wherein the metal is copper, aluminum, nickel, iron, or zinc.
The method as set forth in claim 1, wherein the metal thin film has a thickness of 10pi m or less.
The method as set forth in claim 1, wherein a surface of the glass substrate is subjected to hydrophilic treatment by using a mixture of H₂SO₄ and H₂ 02. US Patent App l. No. 13/656854
The method as set forth in claim 1, wherein the graphene oxide solution contains metal nanowires or metal nano-particles in a content of 50 wt % or less based on the complet e gra phene oxide solution.
The method as set forth in claim 1, wherein the coating of the graphene oxide solution is performed by any one method selected from spray coating, dip coating, spin coating, screen coating, offset coating, in kj et printing, pad printing, knife coating, kiss coating, gravure coating, brushing, ultrasonic fine spray coating, and spray-mist spray coating.
The method as set forth in claim 1, wherein the reducing agent is a gas or liquid phase of HI or NH₂NH2.
The method as set forth in claim 1, wherein the inert gas is nitrogen or argon.
The method as set forth in claim 1, wherein the heat treatment is performed at a temperature of 100 to 1,000 0C.
The method as set forth in claim 1, wherein the graphene oxide solution is an aqueous dispersion or an organic dispersion.
The method as set forth in claim 1, wherein a material for the transparent film is polyethylene terephthalate, polyacrylate, or polycarbonate.
The method as set forth in claim 1, wherein the etching solution is FeC l 3 or HNO3.
A graphene transparent electrode having conductivity of 1 kQ/ci or less, which is manufactured according to the method as set forth in claims 1. US Patent App l. No. 13/656854 Page 4 withdrawn
Layer stacks claimed or described, ordered top of device to substrate.
graphene transparent electrode
Materials described outside the worked examples.
graphene oxide solution
reduced graphene oxide (graphene transparent electrode)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
durability in a graphene oxide coating procedure, a primary reduction procedure, and a seconda r y reduction procedure, and thus, a thickness thereof is 1 0/m or less, and specifically 0.1 to 10pm. 5 Then, the graphene oxide solution is coated on the metal thin
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
sheet conductivity of graphene transparent electrode | — | reduced graphene oxide (graphene transparent electrode) |
Temperature | ≤ 1 °C |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,105,378Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a block diagram schematically showing a process for manufacturing a graphene transparent electrode according to the present invention; and 4
FIG. 2 is a flow chart schematically showing a process for manufacturing a graphene transparent electrode according to a preferred embodiment of the p re sent …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method for manufacturing a graphene transparent electrode, comprising: providing a graphene oxide solution: forming a metal thin film on a glass substrate; coating the graphene oxide solution on the metal thin film, followed by drying; primarily reducing the obtained graphene oxide by using a reducing agent, to obtain reduced graphene oxide; secondarily reducing the reduced graphene oxide by heat treatment under the inert atmosphere, to form a reduced layer; compressing a transparent film on the reduced layer formed on the metal thin film; and separating the compressed transparent film and the reduced la v er from the glass substrate by etching the metal thin film by an etching solution.
The method as set forth in claim 1, wherein the metal is copper, aluminum, nickel, iron, or zinc.
The method as set forth in claim 1, wherein the metal thin film has a thickness of 10pi m or less.
The method as set forth in claim 1, wherein a surface of the glass substrate is subjected to hydrophilic treatment by using a mixture of H₂SO₄ and H₂ 02. US Patent App l. No. 13/656854
The method as set forth in claim 1, wherein the graphene oxide solution contains metal nanowires or metal nano-particles in a content of 50 wt % or less based on the complet e gra phene oxide solution.
The method as set forth in claim 1, wherein the coating of the graphene oxide solution is performed by any one method selected from spray coating, dip coating, spin coating, screen coating, offset coating, in kj et printing, pad printing, knife coating, kiss coating, gravure coating, brushing, ultrasonic fine spray coating, and spray-mist spray coating.
The method as set forth in claim 1, wherein the reducing agent is a gas or liquid phase of HI or NH₂NH2.
The method as set forth in claim 1, wherein the inert gas is nitrogen or argon.
The method as set forth in claim 1, wherein the heat treatment is performed at a temperature of 100 to 1,000 0C.
The method as set forth in claim 1, wherein the graphene oxide solution is an aqueous dispersion or an organic dispersion.
The method as set forth in claim 1, wherein a material for the transparent film is polyethylene terephthalate, polyacrylate, or polycarbonate.
The method as set forth in claim 1, wherein the etching solution is FeC l 3 or HNO3.
A graphene transparent electrode having conductivity of 1 kQ/ci or less, which is manufactured according to the method as set forth in claims 1. US Patent App l. No. 13/656854 Page 4 withdrawn
Layer stacks claimed or described, ordered top of device to substrate.
graphene transparent electrode
Materials described outside the worked examples.
graphene oxide solution
reduced graphene oxide (graphene transparent electrode)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
durability in a graphene oxide coating procedure, a primary reduction procedure, and a seconda r y reduction procedure, and thus, a thickness thereof is 1 0/m or less, and specifically 0.1 to 10pm. 5 Then, the graphene oxide solution is coated on the metal thin
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
sheet conductivity of graphene transparent electrode | — | reduced graphene oxide (graphene transparent electrode) |
Temperature | ≤ 1 °C |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,105,378Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a block diagram schematically showing a process for manufacturing a graphene transparent electrode according to the present invention; and 4
FIG. 2 is a flow chart schematically showing a process for manufacturing a graphene transparent electrode according to a preferred embodiment of the p re sent …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method for manufacturing a graphene transparent electrode, comprising: providing a graphene oxide solution: forming a metal thin film on a glass substrate; coating the graphene oxide solution on the metal thin film, followed by drying; primarily reducing the obtained graphene oxide by using a reducing agent, to obtain reduced graphene oxide; secondarily reducing the reduced graphene oxide by heat treatment under the inert atmosphere, to form a reduced layer; compressing a transparent film on the reduced layer formed on the metal thin film; and separating the compressed transparent film and the reduced la v er from the glass substrate by etching the metal thin film by an etching solution.
The method as set forth in claim 1, wherein the metal is copper, aluminum, nickel, iron, or zinc.
The method as set forth in claim 1, wherein the metal thin film has a thickness of 10pi m or less.
The method as set forth in claim 1, wherein a surface of the glass substrate is subjected to hydrophilic treatment by using a mixture of H₂SO₄ and H₂ 02. US Patent App l. No. 13/656854
The method as set forth in claim 1, wherein the graphene oxide solution contains metal nanowires or metal nano-particles in a content of 50 wt % or less based on the complet e gra phene oxide solution.
The method as set forth in claim 1, wherein the coating of the graphene oxide solution is performed by any one method selected from spray coating, dip coating, spin coating, screen coating, offset coating, in kj et printing, pad printing, knife coating, kiss coating, gravure coating, brushing, ultrasonic fine spray coating, and spray-mist spray coating.
The method as set forth in claim 1, wherein the reducing agent is a gas or liquid phase of HI or NH₂NH2.
The method as set forth in claim 1, wherein the inert gas is nitrogen or argon.
The method as set forth in claim 1, wherein the heat treatment is performed at a temperature of 100 to 1,000 0C.
The method as set forth in claim 1, wherein the graphene oxide solution is an aqueous dispersion or an organic dispersion.
The method as set forth in claim 1, wherein a material for the transparent film is polyethylene terephthalate, polyacrylate, or polycarbonate.
The method as set forth in claim 1, wherein the etching solution is FeC l 3 or HNO3.
A graphene transparent electrode having conductivity of 1 kQ/ci or less, which is manufactured according to the method as set forth in claims 1. US Patent App l. No. 13/656854 Page 4 withdrawn
Layer stacks claimed or described, ordered top of device to substrate.
graphene transparent electrode
Materials described outside the worked examples.
graphene oxide solution
reduced graphene oxide (graphene transparent electrode)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
durability in a graphene oxide coating procedure, a primary reduction procedure, and a seconda r y reduction procedure, and thus, a thickness thereof is 1 0/m or less, and specifically 0.1 to 10pm. 5 Then, the graphene oxide solution is coated on the metal thin
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
sheet conductivity of graphene transparent electrode | — | reduced graphene oxide (graphene transparent electrode) |
Temperature | ≤ 1 °C |
Related documents with shared materials, methods, properties, or citations.
transparent film
metal thin film
H₂SO₄ and H₂O₂ mixture
metal nanowires or metal nano-particles
reducing agent (HI or NH₂NH₂)
etching solution (FeCl₃ or HNO₃)
silver, copper, or gold nanowires/nano-particles
| — |
transparent film
metal thin film
H₂SO₄ and H₂O₂ mixture
metal nanowires or metal nano-particles
reducing agent (HI or NH₂NH₂)
etching solution (FeCl₃ or HNO₃)
silver, copper, or gold nanowires/nano-particles
| — |
transparent film
metal thin film
H₂SO₄ and H₂O₂ mixture
metal nanowires or metal nano-particles
reducing agent (HI or NH₂NH₂)
etching solution (FeCl₃ or HNO₃)
silver, copper, or gold nanowires/nano-particles
| — |
transparent film
metal thin film
H₂SO₄ and H₂O₂ mixture
metal nanowires or metal nano-particles
reducing agent (HI or NH₂NH₂)
etching solution (FeCl₃ or HNO₃)
silver, copper, or gold nanowires/nano-particles
| — |