Patent
US 9,105,403HIGH-THROUGHPUT SOLUTION PROCESSING OF LARGE SCALE GRAPHENE AND DEVICE APPLICATIONS
Yang Yang
US
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Patent
Atlas literature
Patent
US 9,105,403Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 is an SEM image of a large single graphene sheet (scale bar = 10 p m). [0015] Figures 2a and 2b illustrate the preparation of graphene suspensions in an example according to an embodiment of the current invention. The photographs show (Figure 2a) 10 mg of graphite oxide (GO) paper in a …
Figure 3 c is an SEM image of the same large single sheet of graphene. Figure 3d is a single cross-section (top) that indicates step heights of less than 0.6 nm as the AFM tip traverses the solid line in Figure 3b. A histogram (bottom of Figure 3d) of height profiles collected over the entire area …
Figure 6 is a schematic illustration of a method of producing carbon macro- molecular structures according to an embodiment of the current invention. [0021] Figures 7a and 7b illustrate the preparation of chemically converted graphene- CNT suspensions according to an embodiment of the current …
Figure 8 shows representative SEM and AFM images of G-CNT film, along with 3-D topographies of (Figure 8a) Chemically converted graphene. (Figure 8b) Single wall carbon nanotubes network. (Figure 8c) G-CNT hybrid film. Note that the dense network of G- CNT film exceeds the percolation threshold with …
Figure 9 shows optical, electrical and mechanical characterization of G-CNT films according to an embodiment of the current invention. Figure 9a shows photographs of G- CNT film with increasing spin speed (from left to right), 1,050, 1,250, 1,500, 1,750 RPM, respectively. Figure 9b shows optical …
Figure 10 shows representative SEM images of a variety patterns of G-CNT electrode and device structure along with current density-voltage (J- V) curves. Figure l0a shows SEM images of G-CNT patterns spin-coated on Si/SiO₂ substrates. Figure lO b shows a 7 58086-264718 device configuration of G-CNT …
Figure 11 shows sheet resistance of G-CNT films before (squares) and after (circles) chemical doping. An exposure of 15 minutes to room temperature vapors resulted in a decrease in sheet resistance by a factor of 1.5 to 2 for all deposited films.
Figure 12 is an illustration of a method of producing graphene and/or G-CNT conducting patterns for device applications according to an embodiment of the current invention. A diagram (left) and optical microscope images (right) depict the PDMS transfer process according to an embodiment of the …
Figure 13 shows Micro Raman spectra that were collected inside and outside a rectangular region on (Figure 13a) glass and (Figure 13b) Si/SiO₂ according to an embodiment of the current invention. Raman intensity mapping of the G peak indicates that graphene has been completely removed from a …
Figure 15 e shows I S D-V SD measurements and
Figure 16 shows an atomic force microscope image and the corresponding line- scan that confirm a step height of less than 1 nm, indicative of single sheet graphene according to this embodiment of the current invention. DETAILED DESCRIPTI O N [0031] Some embodiments of the current invention are …
Figure 5 a shows the output and transfer characteristics of a typical field effect device according to an embodiment of the current invention. Output V sD-ISD curves show up to 6 mA at source-drain voltages of only -1 V. This represents a considerable improvement over previously reported values for …
Figure 1 O a. Typically, a mixture of 1 mg/ml graphene and 10 mg/ml CNTs were used for spin-coating. The electrodes used were coated on glass and exhibited sheet 21 58086-264718 resistances around 600 £/o at 87% transmittance. The device structure included a thin PEDOT:PSS buffer layer followed by a …
Figure 14 shows Si 2p (top) and C 1 s (bottom) XPS spectra from the deposited region both before and after annealing. The Si peak is predominately Si/SiO 2, but displays a large shoulder consistent with dimethylsiloxane before the annealing process. The shoulder was nearly gone after heating at 1 …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
1-24. canceled
(Cu rr ently Amended) A composition comprising a matrix material and carbon macro-molecular structures graphene-based structures, wherein the graphene-based structures are produced according to claim 1 a method comprising: dissolving a graphitic material in an anhydrous solvent to provide a suspension of carbon-based macro-molecular structures in said solvent; and obtaining a plurality of said graphene-based structures from said suspension, wherein said plurality of graphene-based structures obtained from said suspension each consists essentially of carbon, wherein the graphene-based structures are blended with said matrix material, wherein said carbon macro molecular structures graphene-based structures act to alter at least one of an electrical, structural or mechanical property of said matrix material, wherein said carbon macro-molecular structures graphene-based structures are each single- sheet carbon macro molecular structures graphene-based structures having an area of at least 1 SVG 12747087.03-16-2015.I₇DJ₅JPQPXXIFW1.CLM.3.19.2208.1971.2290.2023.svg 0.173 0.273 Chemistry Black and white and wherein said carbon macro-molecular structures graphene-based structures have a carbon to oxygen atomic ratio of at least 12:1.
(Withdrawn-Previously Presented) An electrode according to claim 26, wherein said electrode has a thickness selected in accordance with a preselected electrical conductivity for said electrode.
(Withdrawn-Currently Amended) An electrode for an electrical, electronic or electro-optic device, comprising: a plurality substantially planar carbon macro-molecular structures graphene-based structures; and a plurality of carbon nanotubes which are in electrical connection with at least two of said plurality of substantially planar carbon macro-molecular structures graphene-based structures, wherein said plurality of carbon nanotubes provide electrical connection between otherwise electrically isolated substantially planar carbon macro molecular structures graphene-based structures, and wherein said carbon macro-molecular structures graphene-based structures have a carbon to oxygen atomic ratio of at least 12:1.
An electrode according to claim 26, further comprising at least one of semiconducting nanorods or conducting nanorods. withdrawn
(Withdrawn-Currently Amended) An electrode according to claim 26, further comprising a layer of an electrically conducting material in addition to a layer formed by said substantially planar carbon macro-molecular structures graphene-based structures and said carbon nanotubes to provide at least a two layer electrode. 2 9318255-v 1 Application No: 12/747,087 Docket No.: 58086-287289
An electrode according to claim 26, wherein said electrode is sufficiently transparent to electromagnetic radiation in an operating range of wavelengths of an electro-optic device to be used as a transparent electrode. withdrawn
(Withdrawn- Cu rr ently Amended) An electrical, electronic or electro-optic device comprising an electrode, said electrode comprising: a plurality substantially planar carbon macro molecular structures graphene-based structures; and a plurality of carbon nanotubes which are in electrical connection with at least two of said plurality of substantially planar carbon macro-molecular structures graphene-based structures, wherein said plurality of carbon nanotubes provide electrical connection between otherwise electrically isolated substantially planar carbon macro molecular structures graphene-based structures, and wherein said carbon macro-molecular structures graphene-based structures have a carbon to oxygen atomic ratio of at least 12:1.
An electrode according to claim 30, further comprising at least one of semiconducting nanorods or conducting nanorods. withdrawn
(Withdrawn- Cu rr ently Amended) An electrical, electronic or electro-optic device according to claim 30, said electrode further comprising a layer of an electrically conducting material in addition to a layer formed by said substantially planar carbon macro-molecular structures graphene- based structures and said carbon nanotubes to provide at least a two layer electrode.
An electrical, electronic or electro-optic device according to claim 30, wherein said electrode is sufficiently transparent to electromagnetic radiation in an operating range of wavelengths of an electro-optic device to be used as a transparent electrode. 3 9318255-v 1 Application No: 12/747,087 Docket No.: 58086-287289 withdrawn
An electrical, electronic or electro-optic device according to claim 30, wherein said electrical, electronic or electro-optic device is at least one of a capacitor, a supercapacitor, a diode, a light emitting diode, a photodiode, a transistor, a photovoltaic cell, a battery, a display device, a field emission display, or an assembly incorporating any combination thereof. withdrawn
canceled
(Cu rr ently Amended) A composition, comprising: a matrix material; and carbon macro molecular structures graphene-based structures blended with said matrix material, wherein said carbon macro-molecular structures graphene-based structures act to alter at least one of an electrical, structural or mechanical property of said matrix material, wherein said carbon macro molecular structures graphene-based structures are each single- sheet carbon macro molecular structures graphene-based structures having an area of at least 1 SVG 12747087.03-16-2015.I₇DJ₅JPQPXXIFW1.CLM.5.12.2208.1367.2290.1419.svg 0.173 0.273 Chemistry Black and white, and wherein said carbon macro-molecular structures graphene-based structures have a carbon to oxygen atomic ratio of at least 12:1.
(Cu rr ently Amended) A composition according to claim 47, wherein said carbon macro-molecular structures graphene-based structures are each single-sheet carbon macro-molecular structures graphene-based structures having an area of at least 20 SVG 12747087.03-16-2015.I₇DJ₅JPQPXXIFW1.CLM.5.18.1615.1971.1697.2023.svg 0.173 0.273 Chemistry Black and white.
(Cu rr ently Amended) A composition according to claim 47, further comprising: a plurality of carbon nanotubes blended with said matrix material, wherein said plurality of carbon nanotubes provide electrical connection between at least some of said single-sheet carbon macro molecular structures graphene-based structures.
A composition according to claim 47, wherein said carbon macro- molecular structures graphene-based structures further comprise nitrogen such that a carbon to nitrogen atomic ratio is within the range of 8:1.5 to 12:0.7. 7 9318255-v 1
Layer stacks claimed or described, ordered top of device to substrate.
electrode for electrical, electronic or electro-optic device
electrical, electronic or electro-optic device with graphene/CNT electrode
Materials described outside the worked examples.
graphene-based structures (carbon macro-molecular structures)
carbon nanotubes
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Figure 1 is an SEM image of a large single graphene sheet (scale bar = 10 p m). [0015] Figures 2a and 2b illustrate the preparation of graphene suspensions in an example according to an embodiment of the current invention. The photographs show (Figure 2a) 10 mg of graphite oxide (GO) paper in a …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
transparency of transparent electrode (claimed minimum, variant 1) | 55 % | graphene-based structures (carbon macro-molecular structures) |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,105,403Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 is an SEM image of a large single graphene sheet (scale bar = 10 p m). [0015] Figures 2a and 2b illustrate the preparation of graphene suspensions in an example according to an embodiment of the current invention. The photographs show (Figure 2a) 10 mg of graphite oxide (GO) paper in a …
Figure 3 c is an SEM image of the same large single sheet of graphene. Figure 3d is a single cross-section (top) that indicates step heights of less than 0.6 nm as the AFM tip traverses the solid line in Figure 3b. A histogram (bottom of Figure 3d) of height profiles collected over the entire area …
Figure 6 is a schematic illustration of a method of producing carbon macro- molecular structures according to an embodiment of the current invention. [0021] Figures 7a and 7b illustrate the preparation of chemically converted graphene- CNT suspensions according to an embodiment of the current …
Figure 8 shows representative SEM and AFM images of G-CNT film, along with 3-D topographies of (Figure 8a) Chemically converted graphene. (Figure 8b) Single wall carbon nanotubes network. (Figure 8c) G-CNT hybrid film. Note that the dense network of G- CNT film exceeds the percolation threshold with …
Figure 9 shows optical, electrical and mechanical characterization of G-CNT films according to an embodiment of the current invention. Figure 9a shows photographs of G- CNT film with increasing spin speed (from left to right), 1,050, 1,250, 1,500, 1,750 RPM, respectively. Figure 9b shows optical …
Figure 10 shows representative SEM images of a variety patterns of G-CNT electrode and device structure along with current density-voltage (J- V) curves. Figure l0a shows SEM images of G-CNT patterns spin-coated on Si/SiO₂ substrates. Figure lO b shows a 7 58086-264718 device configuration of G-CNT …
Figure 11 shows sheet resistance of G-CNT films before (squares) and after (circles) chemical doping. An exposure of 15 minutes to room temperature vapors resulted in a decrease in sheet resistance by a factor of 1.5 to 2 for all deposited films.
Figure 12 is an illustration of a method of producing graphene and/or G-CNT conducting patterns for device applications according to an embodiment of the current invention. A diagram (left) and optical microscope images (right) depict the PDMS transfer process according to an embodiment of the …
Figure 13 shows Micro Raman spectra that were collected inside and outside a rectangular region on (Figure 13a) glass and (Figure 13b) Si/SiO₂ according to an embodiment of the current invention. Raman intensity mapping of the G peak indicates that graphene has been completely removed from a …
Figure 15 e shows I S D-V SD measurements and
Figure 16 shows an atomic force microscope image and the corresponding line- scan that confirm a step height of less than 1 nm, indicative of single sheet graphene according to this embodiment of the current invention. DETAILED DESCRIPTI O N [0031] Some embodiments of the current invention are …
Figure 5 a shows the output and transfer characteristics of a typical field effect device according to an embodiment of the current invention. Output V sD-ISD curves show up to 6 mA at source-drain voltages of only -1 V. This represents a considerable improvement over previously reported values for …
Figure 1 O a. Typically, a mixture of 1 mg/ml graphene and 10 mg/ml CNTs were used for spin-coating. The electrodes used were coated on glass and exhibited sheet 21 58086-264718 resistances around 600 £/o at 87% transmittance. The device structure included a thin PEDOT:PSS buffer layer followed by a …
Figure 14 shows Si 2p (top) and C 1 s (bottom) XPS spectra from the deposited region both before and after annealing. The Si peak is predominately Si/SiO 2, but displays a large shoulder consistent with dimethylsiloxane before the annealing process. The shoulder was nearly gone after heating at 1 …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
1-24. canceled
(Cu rr ently Amended) A composition comprising a matrix material and carbon macro-molecular structures graphene-based structures, wherein the graphene-based structures are produced according to claim 1 a method comprising: dissolving a graphitic material in an anhydrous solvent to provide a suspension of carbon-based macro-molecular structures in said solvent; and obtaining a plurality of said graphene-based structures from said suspension, wherein said plurality of graphene-based structures obtained from said suspension each consists essentially of carbon, wherein the graphene-based structures are blended with said matrix material, wherein said carbon macro molecular structures graphene-based structures act to alter at least one of an electrical, structural or mechanical property of said matrix material, wherein said carbon macro-molecular structures graphene-based structures are each single- sheet carbon macro molecular structures graphene-based structures having an area of at least 1 SVG 12747087.03-16-2015.I₇DJ₅JPQPXXIFW1.CLM.3.19.2208.1971.2290.2023.svg 0.173 0.273 Chemistry Black and white and wherein said carbon macro-molecular structures graphene-based structures have a carbon to oxygen atomic ratio of at least 12:1.
(Withdrawn-Previously Presented) An electrode according to claim 26, wherein said electrode has a thickness selected in accordance with a preselected electrical conductivity for said electrode.
(Withdrawn-Currently Amended) An electrode for an electrical, electronic or electro-optic device, comprising: a plurality substantially planar carbon macro-molecular structures graphene-based structures; and a plurality of carbon nanotubes which are in electrical connection with at least two of said plurality of substantially planar carbon macro-molecular structures graphene-based structures, wherein said plurality of carbon nanotubes provide electrical connection between otherwise electrically isolated substantially planar carbon macro molecular structures graphene-based structures, and wherein said carbon macro-molecular structures graphene-based structures have a carbon to oxygen atomic ratio of at least 12:1.
An electrode according to claim 26, further comprising at least one of semiconducting nanorods or conducting nanorods. withdrawn
(Withdrawn-Currently Amended) An electrode according to claim 26, further comprising a layer of an electrically conducting material in addition to a layer formed by said substantially planar carbon macro-molecular structures graphene-based structures and said carbon nanotubes to provide at least a two layer electrode. 2 9318255-v 1 Application No: 12/747,087 Docket No.: 58086-287289
An electrode according to claim 26, wherein said electrode is sufficiently transparent to electromagnetic radiation in an operating range of wavelengths of an electro-optic device to be used as a transparent electrode. withdrawn
(Withdrawn- Cu rr ently Amended) An electrical, electronic or electro-optic device comprising an electrode, said electrode comprising: a plurality substantially planar carbon macro molecular structures graphene-based structures; and a plurality of carbon nanotubes which are in electrical connection with at least two of said plurality of substantially planar carbon macro-molecular structures graphene-based structures, wherein said plurality of carbon nanotubes provide electrical connection between otherwise electrically isolated substantially planar carbon macro molecular structures graphene-based structures, and wherein said carbon macro-molecular structures graphene-based structures have a carbon to oxygen atomic ratio of at least 12:1.
An electrode according to claim 30, further comprising at least one of semiconducting nanorods or conducting nanorods. withdrawn
(Withdrawn- Cu rr ently Amended) An electrical, electronic or electro-optic device according to claim 30, said electrode further comprising a layer of an electrically conducting material in addition to a layer formed by said substantially planar carbon macro-molecular structures graphene- based structures and said carbon nanotubes to provide at least a two layer electrode.
An electrical, electronic or electro-optic device according to claim 30, wherein said electrode is sufficiently transparent to electromagnetic radiation in an operating range of wavelengths of an electro-optic device to be used as a transparent electrode. 3 9318255-v 1 Application No: 12/747,087 Docket No.: 58086-287289 withdrawn
An electrical, electronic or electro-optic device according to claim 30, wherein said electrical, electronic or electro-optic device is at least one of a capacitor, a supercapacitor, a diode, a light emitting diode, a photodiode, a transistor, a photovoltaic cell, a battery, a display device, a field emission display, or an assembly incorporating any combination thereof. withdrawn
canceled
(Cu rr ently Amended) A composition, comprising: a matrix material; and carbon macro molecular structures graphene-based structures blended with said matrix material, wherein said carbon macro-molecular structures graphene-based structures act to alter at least one of an electrical, structural or mechanical property of said matrix material, wherein said carbon macro molecular structures graphene-based structures are each single- sheet carbon macro molecular structures graphene-based structures having an area of at least 1 SVG 12747087.03-16-2015.I₇DJ₅JPQPXXIFW1.CLM.5.12.2208.1367.2290.1419.svg 0.173 0.273 Chemistry Black and white, and wherein said carbon macro-molecular structures graphene-based structures have a carbon to oxygen atomic ratio of at least 12:1.
(Cu rr ently Amended) A composition according to claim 47, wherein said carbon macro-molecular structures graphene-based structures are each single-sheet carbon macro-molecular structures graphene-based structures having an area of at least 20 SVG 12747087.03-16-2015.I₇DJ₅JPQPXXIFW1.CLM.5.18.1615.1971.1697.2023.svg 0.173 0.273 Chemistry Black and white.
(Cu rr ently Amended) A composition according to claim 47, further comprising: a plurality of carbon nanotubes blended with said matrix material, wherein said plurality of carbon nanotubes provide electrical connection between at least some of said single-sheet carbon macro molecular structures graphene-based structures.
A composition according to claim 47, wherein said carbon macro- molecular structures graphene-based structures further comprise nitrogen such that a carbon to nitrogen atomic ratio is within the range of 8:1.5 to 12:0.7. 7 9318255-v 1
Layer stacks claimed or described, ordered top of device to substrate.
electrode for electrical, electronic or electro-optic device
electrical, electronic or electro-optic device with graphene/CNT electrode
Materials described outside the worked examples.
graphene-based structures (carbon macro-molecular structures)
carbon nanotubes
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Figure 1 is an SEM image of a large single graphene sheet (scale bar = 10 p m). [0015] Figures 2a and 2b illustrate the preparation of graphene suspensions in an example according to an embodiment of the current invention. The photographs show (Figure 2a) 10 mg of graphite oxide (GO) paper in a …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
transparency of transparent electrode (claimed minimum, variant 1) | 55 % | graphene-based structures (carbon macro-molecular structures) |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,105,403Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 is an SEM image of a large single graphene sheet (scale bar = 10 p m). [0015] Figures 2a and 2b illustrate the preparation of graphene suspensions in an example according to an embodiment of the current invention. The photographs show (Figure 2a) 10 mg of graphite oxide (GO) paper in a …
Figure 3 c is an SEM image of the same large single sheet of graphene. Figure 3d is a single cross-section (top) that indicates step heights of less than 0.6 nm as the AFM tip traverses the solid line in Figure 3b. A histogram (bottom of Figure 3d) of height profiles collected over the entire area …
Figure 6 is a schematic illustration of a method of producing carbon macro- molecular structures according to an embodiment of the current invention. [0021] Figures 7a and 7b illustrate the preparation of chemically converted graphene- CNT suspensions according to an embodiment of the current …
Figure 8 shows representative SEM and AFM images of G-CNT film, along with 3-D topographies of (Figure 8a) Chemically converted graphene. (Figure 8b) Single wall carbon nanotubes network. (Figure 8c) G-CNT hybrid film. Note that the dense network of G- CNT film exceeds the percolation threshold with …
Figure 9 shows optical, electrical and mechanical characterization of G-CNT films according to an embodiment of the current invention. Figure 9a shows photographs of G- CNT film with increasing spin speed (from left to right), 1,050, 1,250, 1,500, 1,750 RPM, respectively. Figure 9b shows optical …
Figure 10 shows representative SEM images of a variety patterns of G-CNT electrode and device structure along with current density-voltage (J- V) curves. Figure l0a shows SEM images of G-CNT patterns spin-coated on Si/SiO₂ substrates. Figure lO b shows a 7 58086-264718 device configuration of G-CNT …
Figure 11 shows sheet resistance of G-CNT films before (squares) and after (circles) chemical doping. An exposure of 15 minutes to room temperature vapors resulted in a decrease in sheet resistance by a factor of 1.5 to 2 for all deposited films.
Figure 12 is an illustration of a method of producing graphene and/or G-CNT conducting patterns for device applications according to an embodiment of the current invention. A diagram (left) and optical microscope images (right) depict the PDMS transfer process according to an embodiment of the …
Figure 13 shows Micro Raman spectra that were collected inside and outside a rectangular region on (Figure 13a) glass and (Figure 13b) Si/SiO₂ according to an embodiment of the current invention. Raman intensity mapping of the G peak indicates that graphene has been completely removed from a …
Figure 15 e shows I S D-V SD measurements and
Figure 16 shows an atomic force microscope image and the corresponding line- scan that confirm a step height of less than 1 nm, indicative of single sheet graphene according to this embodiment of the current invention. DETAILED DESCRIPTI O N [0031] Some embodiments of the current invention are …
Figure 5 a shows the output and transfer characteristics of a typical field effect device according to an embodiment of the current invention. Output V sD-ISD curves show up to 6 mA at source-drain voltages of only -1 V. This represents a considerable improvement over previously reported values for …
Figure 1 O a. Typically, a mixture of 1 mg/ml graphene and 10 mg/ml CNTs were used for spin-coating. The electrodes used were coated on glass and exhibited sheet 21 58086-264718 resistances around 600 £/o at 87% transmittance. The device structure included a thin PEDOT:PSS buffer layer followed by a …
Figure 14 shows Si 2p (top) and C 1 s (bottom) XPS spectra from the deposited region both before and after annealing. The Si peak is predominately Si/SiO 2, but displays a large shoulder consistent with dimethylsiloxane before the annealing process. The shoulder was nearly gone after heating at 1 …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
1-24. canceled
(Cu rr ently Amended) A composition comprising a matrix material and carbon macro-molecular structures graphene-based structures, wherein the graphene-based structures are produced according to claim 1 a method comprising: dissolving a graphitic material in an anhydrous solvent to provide a suspension of carbon-based macro-molecular structures in said solvent; and obtaining a plurality of said graphene-based structures from said suspension, wherein said plurality of graphene-based structures obtained from said suspension each consists essentially of carbon, wherein the graphene-based structures are blended with said matrix material, wherein said carbon macro molecular structures graphene-based structures act to alter at least one of an electrical, structural or mechanical property of said matrix material, wherein said carbon macro-molecular structures graphene-based structures are each single- sheet carbon macro molecular structures graphene-based structures having an area of at least 1 SVG 12747087.03-16-2015.I₇DJ₅JPQPXXIFW1.CLM.3.19.2208.1971.2290.2023.svg 0.173 0.273 Chemistry Black and white and wherein said carbon macro-molecular structures graphene-based structures have a carbon to oxygen atomic ratio of at least 12:1.
(Withdrawn-Previously Presented) An electrode according to claim 26, wherein said electrode has a thickness selected in accordance with a preselected electrical conductivity for said electrode.
(Withdrawn-Currently Amended) An electrode for an electrical, electronic or electro-optic device, comprising: a plurality substantially planar carbon macro-molecular structures graphene-based structures; and a plurality of carbon nanotubes which are in electrical connection with at least two of said plurality of substantially planar carbon macro-molecular structures graphene-based structures, wherein said plurality of carbon nanotubes provide electrical connection between otherwise electrically isolated substantially planar carbon macro molecular structures graphene-based structures, and wherein said carbon macro-molecular structures graphene-based structures have a carbon to oxygen atomic ratio of at least 12:1.
An electrode according to claim 26, further comprising at least one of semiconducting nanorods or conducting nanorods. withdrawn
(Withdrawn-Currently Amended) An electrode according to claim 26, further comprising a layer of an electrically conducting material in addition to a layer formed by said substantially planar carbon macro-molecular structures graphene-based structures and said carbon nanotubes to provide at least a two layer electrode. 2 9318255-v 1 Application No: 12/747,087 Docket No.: 58086-287289
An electrode according to claim 26, wherein said electrode is sufficiently transparent to electromagnetic radiation in an operating range of wavelengths of an electro-optic device to be used as a transparent electrode. withdrawn
(Withdrawn- Cu rr ently Amended) An electrical, electronic or electro-optic device comprising an electrode, said electrode comprising: a plurality substantially planar carbon macro molecular structures graphene-based structures; and a plurality of carbon nanotubes which are in electrical connection with at least two of said plurality of substantially planar carbon macro-molecular structures graphene-based structures, wherein said plurality of carbon nanotubes provide electrical connection between otherwise electrically isolated substantially planar carbon macro molecular structures graphene-based structures, and wherein said carbon macro-molecular structures graphene-based structures have a carbon to oxygen atomic ratio of at least 12:1.
An electrode according to claim 30, further comprising at least one of semiconducting nanorods or conducting nanorods. withdrawn
(Withdrawn- Cu rr ently Amended) An electrical, electronic or electro-optic device according to claim 30, said electrode further comprising a layer of an electrically conducting material in addition to a layer formed by said substantially planar carbon macro-molecular structures graphene- based structures and said carbon nanotubes to provide at least a two layer electrode.
An electrical, electronic or electro-optic device according to claim 30, wherein said electrode is sufficiently transparent to electromagnetic radiation in an operating range of wavelengths of an electro-optic device to be used as a transparent electrode. 3 9318255-v 1 Application No: 12/747,087 Docket No.: 58086-287289 withdrawn
An electrical, electronic or electro-optic device according to claim 30, wherein said electrical, electronic or electro-optic device is at least one of a capacitor, a supercapacitor, a diode, a light emitting diode, a photodiode, a transistor, a photovoltaic cell, a battery, a display device, a field emission display, or an assembly incorporating any combination thereof. withdrawn
canceled
(Cu rr ently Amended) A composition, comprising: a matrix material; and carbon macro molecular structures graphene-based structures blended with said matrix material, wherein said carbon macro-molecular structures graphene-based structures act to alter at least one of an electrical, structural or mechanical property of said matrix material, wherein said carbon macro molecular structures graphene-based structures are each single- sheet carbon macro molecular structures graphene-based structures having an area of at least 1 SVG 12747087.03-16-2015.I₇DJ₅JPQPXXIFW1.CLM.5.12.2208.1367.2290.1419.svg 0.173 0.273 Chemistry Black and white, and wherein said carbon macro-molecular structures graphene-based structures have a carbon to oxygen atomic ratio of at least 12:1.
(Cu rr ently Amended) A composition according to claim 47, wherein said carbon macro-molecular structures graphene-based structures are each single-sheet carbon macro-molecular structures graphene-based structures having an area of at least 20 SVG 12747087.03-16-2015.I₇DJ₅JPQPXXIFW1.CLM.5.18.1615.1971.1697.2023.svg 0.173 0.273 Chemistry Black and white.
(Cu rr ently Amended) A composition according to claim 47, further comprising: a plurality of carbon nanotubes blended with said matrix material, wherein said plurality of carbon nanotubes provide electrical connection between at least some of said single-sheet carbon macro molecular structures graphene-based structures.
A composition according to claim 47, wherein said carbon macro- molecular structures graphene-based structures further comprise nitrogen such that a carbon to nitrogen atomic ratio is within the range of 8:1.5 to 12:0.7. 7 9318255-v 1
Layer stacks claimed or described, ordered top of device to substrate.
electrode for electrical, electronic or electro-optic device
electrical, electronic or electro-optic device with graphene/CNT electrode
Materials described outside the worked examples.
graphene-based structures (carbon macro-molecular structures)
carbon nanotubes
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Figure 1 is an SEM image of a large single graphene sheet (scale bar = 10 p m). [0015] Figures 2a and 2b illustrate the preparation of graphene suspensions in an example according to an embodiment of the current invention. The photographs show (Figure 2a) 10 mg of graphite oxide (GO) paper in a …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
transparency of transparent electrode (claimed minimum, variant 1) | 55 % | graphene-based structures (carbon macro-molecular structures) |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,105,403Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 is an SEM image of a large single graphene sheet (scale bar = 10 p m). [0015] Figures 2a and 2b illustrate the preparation of graphene suspensions in an example according to an embodiment of the current invention. The photographs show (Figure 2a) 10 mg of graphite oxide (GO) paper in a …
Figure 3 c is an SEM image of the same large single sheet of graphene. Figure 3d is a single cross-section (top) that indicates step heights of less than 0.6 nm as the AFM tip traverses the solid line in Figure 3b. A histogram (bottom of Figure 3d) of height profiles collected over the entire area …
Figure 6 is a schematic illustration of a method of producing carbon macro- molecular structures according to an embodiment of the current invention. [0021] Figures 7a and 7b illustrate the preparation of chemically converted graphene- CNT suspensions according to an embodiment of the current …
Figure 8 shows representative SEM and AFM images of G-CNT film, along with 3-D topographies of (Figure 8a) Chemically converted graphene. (Figure 8b) Single wall carbon nanotubes network. (Figure 8c) G-CNT hybrid film. Note that the dense network of G- CNT film exceeds the percolation threshold with …
Figure 9 shows optical, electrical and mechanical characterization of G-CNT films according to an embodiment of the current invention. Figure 9a shows photographs of G- CNT film with increasing spin speed (from left to right), 1,050, 1,250, 1,500, 1,750 RPM, respectively. Figure 9b shows optical …
Figure 10 shows representative SEM images of a variety patterns of G-CNT electrode and device structure along with current density-voltage (J- V) curves. Figure l0a shows SEM images of G-CNT patterns spin-coated on Si/SiO₂ substrates. Figure lO b shows a 7 58086-264718 device configuration of G-CNT …
Figure 11 shows sheet resistance of G-CNT films before (squares) and after (circles) chemical doping. An exposure of 15 minutes to room temperature vapors resulted in a decrease in sheet resistance by a factor of 1.5 to 2 for all deposited films.
Figure 12 is an illustration of a method of producing graphene and/or G-CNT conducting patterns for device applications according to an embodiment of the current invention. A diagram (left) and optical microscope images (right) depict the PDMS transfer process according to an embodiment of the …
Figure 13 shows Micro Raman spectra that were collected inside and outside a rectangular region on (Figure 13a) glass and (Figure 13b) Si/SiO₂ according to an embodiment of the current invention. Raman intensity mapping of the G peak indicates that graphene has been completely removed from a …
Figure 15 e shows I S D-V SD measurements and
Figure 16 shows an atomic force microscope image and the corresponding line- scan that confirm a step height of less than 1 nm, indicative of single sheet graphene according to this embodiment of the current invention. DETAILED DESCRIPTI O N [0031] Some embodiments of the current invention are …
Figure 5 a shows the output and transfer characteristics of a typical field effect device according to an embodiment of the current invention. Output V sD-ISD curves show up to 6 mA at source-drain voltages of only -1 V. This represents a considerable improvement over previously reported values for …
Figure 1 O a. Typically, a mixture of 1 mg/ml graphene and 10 mg/ml CNTs were used for spin-coating. The electrodes used were coated on glass and exhibited sheet 21 58086-264718 resistances around 600 £/o at 87% transmittance. The device structure included a thin PEDOT:PSS buffer layer followed by a …
Figure 14 shows Si 2p (top) and C 1 s (bottom) XPS spectra from the deposited region both before and after annealing. The Si peak is predominately Si/SiO 2, but displays a large shoulder consistent with dimethylsiloxane before the annealing process. The shoulder was nearly gone after heating at 1 …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
1-24. canceled
(Cu rr ently Amended) A composition comprising a matrix material and carbon macro-molecular structures graphene-based structures, wherein the graphene-based structures are produced according to claim 1 a method comprising: dissolving a graphitic material in an anhydrous solvent to provide a suspension of carbon-based macro-molecular structures in said solvent; and obtaining a plurality of said graphene-based structures from said suspension, wherein said plurality of graphene-based structures obtained from said suspension each consists essentially of carbon, wherein the graphene-based structures are blended with said matrix material, wherein said carbon macro molecular structures graphene-based structures act to alter at least one of an electrical, structural or mechanical property of said matrix material, wherein said carbon macro-molecular structures graphene-based structures are each single- sheet carbon macro molecular structures graphene-based structures having an area of at least 1 SVG 12747087.03-16-2015.I₇DJ₅JPQPXXIFW1.CLM.3.19.2208.1971.2290.2023.svg 0.173 0.273 Chemistry Black and white and wherein said carbon macro-molecular structures graphene-based structures have a carbon to oxygen atomic ratio of at least 12:1.
(Withdrawn-Previously Presented) An electrode according to claim 26, wherein said electrode has a thickness selected in accordance with a preselected electrical conductivity for said electrode.
(Withdrawn-Currently Amended) An electrode for an electrical, electronic or electro-optic device, comprising: a plurality substantially planar carbon macro-molecular structures graphene-based structures; and a plurality of carbon nanotubes which are in electrical connection with at least two of said plurality of substantially planar carbon macro-molecular structures graphene-based structures, wherein said plurality of carbon nanotubes provide electrical connection between otherwise electrically isolated substantially planar carbon macro molecular structures graphene-based structures, and wherein said carbon macro-molecular structures graphene-based structures have a carbon to oxygen atomic ratio of at least 12:1.
An electrode according to claim 26, further comprising at least one of semiconducting nanorods or conducting nanorods. withdrawn
(Withdrawn-Currently Amended) An electrode according to claim 26, further comprising a layer of an electrically conducting material in addition to a layer formed by said substantially planar carbon macro-molecular structures graphene-based structures and said carbon nanotubes to provide at least a two layer electrode. 2 9318255-v 1 Application No: 12/747,087 Docket No.: 58086-287289
An electrode according to claim 26, wherein said electrode is sufficiently transparent to electromagnetic radiation in an operating range of wavelengths of an electro-optic device to be used as a transparent electrode. withdrawn
(Withdrawn- Cu rr ently Amended) An electrical, electronic or electro-optic device comprising an electrode, said electrode comprising: a plurality substantially planar carbon macro molecular structures graphene-based structures; and a plurality of carbon nanotubes which are in electrical connection with at least two of said plurality of substantially planar carbon macro-molecular structures graphene-based structures, wherein said plurality of carbon nanotubes provide electrical connection between otherwise electrically isolated substantially planar carbon macro molecular structures graphene-based structures, and wherein said carbon macro-molecular structures graphene-based structures have a carbon to oxygen atomic ratio of at least 12:1.
An electrode according to claim 30, further comprising at least one of semiconducting nanorods or conducting nanorods. withdrawn
(Withdrawn- Cu rr ently Amended) An electrical, electronic or electro-optic device according to claim 30, said electrode further comprising a layer of an electrically conducting material in addition to a layer formed by said substantially planar carbon macro-molecular structures graphene- based structures and said carbon nanotubes to provide at least a two layer electrode.
An electrical, electronic or electro-optic device according to claim 30, wherein said electrode is sufficiently transparent to electromagnetic radiation in an operating range of wavelengths of an electro-optic device to be used as a transparent electrode. 3 9318255-v 1 Application No: 12/747,087 Docket No.: 58086-287289 withdrawn
An electrical, electronic or electro-optic device according to claim 30, wherein said electrical, electronic or electro-optic device is at least one of a capacitor, a supercapacitor, a diode, a light emitting diode, a photodiode, a transistor, a photovoltaic cell, a battery, a display device, a field emission display, or an assembly incorporating any combination thereof. withdrawn
canceled
(Cu rr ently Amended) A composition, comprising: a matrix material; and carbon macro molecular structures graphene-based structures blended with said matrix material, wherein said carbon macro-molecular structures graphene-based structures act to alter at least one of an electrical, structural or mechanical property of said matrix material, wherein said carbon macro molecular structures graphene-based structures are each single- sheet carbon macro molecular structures graphene-based structures having an area of at least 1 SVG 12747087.03-16-2015.I₇DJ₅JPQPXXIFW1.CLM.5.12.2208.1367.2290.1419.svg 0.173 0.273 Chemistry Black and white, and wherein said carbon macro-molecular structures graphene-based structures have a carbon to oxygen atomic ratio of at least 12:1.
(Cu rr ently Amended) A composition according to claim 47, wherein said carbon macro-molecular structures graphene-based structures are each single-sheet carbon macro-molecular structures graphene-based structures having an area of at least 20 SVG 12747087.03-16-2015.I₇DJ₅JPQPXXIFW1.CLM.5.18.1615.1971.1697.2023.svg 0.173 0.273 Chemistry Black and white.
(Cu rr ently Amended) A composition according to claim 47, further comprising: a plurality of carbon nanotubes blended with said matrix material, wherein said plurality of carbon nanotubes provide electrical connection between at least some of said single-sheet carbon macro molecular structures graphene-based structures.
A composition according to claim 47, wherein said carbon macro- molecular structures graphene-based structures further comprise nitrogen such that a carbon to nitrogen atomic ratio is within the range of 8:1.5 to 12:0.7. 7 9318255-v 1
Layer stacks claimed or described, ordered top of device to substrate.
electrode for electrical, electronic or electro-optic device
electrical, electronic or electro-optic device with graphene/CNT electrode
Materials described outside the worked examples.
graphene-based structures (carbon macro-molecular structures)
carbon nanotubes
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Figure 1 is an SEM image of a large single graphene sheet (scale bar = 10 p m). [0015] Figures 2a and 2b illustrate the preparation of graphene suspensions in an example according to an embodiment of the current invention. The photographs show (Figure 2a) 10 mg of graphite oxide (GO) paper in a …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
transparency of transparent electrode (claimed minimum, variant 1) | 55 % | graphene-based structures (carbon macro-molecular structures) |
Related documents with shared materials, methods, properties, or citations.
nanorods (semiconducting or conducting)
matrix material
nitrogen-doped graphene-based structures
graphitic material
Figure 3 c is an SEM image of the same large single sheet of graphene. Figure 3d is a single cross-section (top) that indicates step heights of less than 0.6 nm as the AFM tip traverses the solid line in Figure 3b. A histogram (bottom of Figure 3d) of height profiles collected over the entire area …
Figure 3 c is an SEM image of the same large single sheet of graphene. Figure 3d is a single cross-section (top) that indicates step heights of less than 0.6 nm as the AFM tip traverses the solid line in Figure 3b. A histogram (bottom of Figure 3d) of height profiles collected over the entire area …
Figure 8 shows representative SEM and AFM images of G-CNT film, along with 3-D topographies of (Figure 8a) Chemically converted graphene. (Figure 8b) Single wall carbon nanotubes network. (Figure 8c) G-CNT hybrid film. Note that the dense network of G- CNT film exceeds the percolation threshold with …
Figure 8 shows representative SEM and AFM images of G-CNT film, along with 3-D topographies of (Figure 8a) Chemically converted graphene. (Figure 8b) Single wall carbon nanotubes network. (Figure 8c) G-CNT hybrid film. Note that the dense network of G- CNT film exceeds the percolation threshold with …
Figure 9 shows optical, electrical and mechanical characterization of G-CNT films according to an embodiment of the current invention. Figure 9a shows photographs of G- CNT film with increasing spin speed (from left to right), 1,050, 1,250, 1,500, 1,750 RPM, respectively. Figure 9b shows optical …
Figure 10 shows representative SEM images of a variety patterns of G-CNT electrode and device structure along with current density-voltage (J- V) curves. Figure l0a shows SEM images of G-CNT patterns spin-coated on Si/SiO₂ substrates. Figure lO b shows a 7 58086-264718 device configuration of G-CNT …
Figure 10 shows representative SEM images of a variety patterns of G-CNT electrode and device structure along with current density-voltage (J- V) curves. Figure l0a shows SEM images of G-CNT patterns spin-coated on Si/SiO₂ substrates. Figure lO b shows a 7 58086-264718 device configuration of G-CNT …
Figure 11 shows sheet resistance of G-CNT films before (squares) and after (circles) chemical doping. An exposure of 15 minutes to room temperature vapors resulted in a decrease in sheet resistance by a factor of 1.5 to 2 for all deposited films.
Figure 13 shows Micro Raman spectra that were collected inside and outside a rectangular region on (Figure 13a) glass and (Figure 13b) Si/SiO₂ according to an embodiment of the current invention. Raman intensity mapping of the G peak indicates that graphene has been completely removed from a …
Figure 16 shows an atomic force microscope image and the corresponding line- scan that confirm a step height of less than 1 nm, indicative of single sheet graphene according to this embodiment of the current invention. DETAILED DESCRIPTI O N [0031] Some embodiments of the current invention are …
Figure 14 shows Si 2p (top) and C 1 s (bottom) XPS spectra from the deposited region both before and after annealing. The Si peak is predominately Si/SiO 2, but displays a large shoulder consistent with dimethylsiloxane before the annealing process. The shoulder was nearly gone after heating at 1 …
sheet resistance of transparent electrode (claimed maximum, variant 1) |
| 700 Ω/sq |
graphene-based structures (carbon macro-molecular structures) |
sheet resistance of transparent electrode (claimed maximum, variant 2) | 44 Ω/sq | graphene-based structures (carbon macro-molecular structures) |
transparency of transparent electrode (claimed minimum, variant 3) | 87 % | graphene-based structures (carbon macro-molecular structures) |
sheet resistance of transparent electrode (claimed maximum, variant 3) | 600 Ω/sq | graphene-based structures (carbon macro-molecular structures) |
nanorods (semiconducting or conducting)
matrix material
nitrogen-doped graphene-based structures
graphitic material
Figure 3 c is an SEM image of the same large single sheet of graphene. Figure 3d is a single cross-section (top) that indicates step heights of less than 0.6 nm as the AFM tip traverses the solid line in Figure 3b. A histogram (bottom of Figure 3d) of height profiles collected over the entire area …
Figure 3 c is an SEM image of the same large single sheet of graphene. Figure 3d is a single cross-section (top) that indicates step heights of less than 0.6 nm as the AFM tip traverses the solid line in Figure 3b. A histogram (bottom of Figure 3d) of height profiles collected over the entire area …
Figure 8 shows representative SEM and AFM images of G-CNT film, along with 3-D topographies of (Figure 8a) Chemically converted graphene. (Figure 8b) Single wall carbon nanotubes network. (Figure 8c) G-CNT hybrid film. Note that the dense network of G- CNT film exceeds the percolation threshold with …
Figure 8 shows representative SEM and AFM images of G-CNT film, along with 3-D topographies of (Figure 8a) Chemically converted graphene. (Figure 8b) Single wall carbon nanotubes network. (Figure 8c) G-CNT hybrid film. Note that the dense network of G- CNT film exceeds the percolation threshold with …
Figure 9 shows optical, electrical and mechanical characterization of G-CNT films according to an embodiment of the current invention. Figure 9a shows photographs of G- CNT film with increasing spin speed (from left to right), 1,050, 1,250, 1,500, 1,750 RPM, respectively. Figure 9b shows optical …
Figure 10 shows representative SEM images of a variety patterns of G-CNT electrode and device structure along with current density-voltage (J- V) curves. Figure l0a shows SEM images of G-CNT patterns spin-coated on Si/SiO₂ substrates. Figure lO b shows a 7 58086-264718 device configuration of G-CNT …
Figure 10 shows representative SEM images of a variety patterns of G-CNT electrode and device structure along with current density-voltage (J- V) curves. Figure l0a shows SEM images of G-CNT patterns spin-coated on Si/SiO₂ substrates. Figure lO b shows a 7 58086-264718 device configuration of G-CNT …
Figure 11 shows sheet resistance of G-CNT films before (squares) and after (circles) chemical doping. An exposure of 15 minutes to room temperature vapors resulted in a decrease in sheet resistance by a factor of 1.5 to 2 for all deposited films.
Figure 13 shows Micro Raman spectra that were collected inside and outside a rectangular region on (Figure 13a) glass and (Figure 13b) Si/SiO₂ according to an embodiment of the current invention. Raman intensity mapping of the G peak indicates that graphene has been completely removed from a …
Figure 16 shows an atomic force microscope image and the corresponding line- scan that confirm a step height of less than 1 nm, indicative of single sheet graphene according to this embodiment of the current invention. DETAILED DESCRIPTI O N [0031] Some embodiments of the current invention are …
Figure 14 shows Si 2p (top) and C 1 s (bottom) XPS spectra from the deposited region both before and after annealing. The Si peak is predominately Si/SiO 2, but displays a large shoulder consistent with dimethylsiloxane before the annealing process. The shoulder was nearly gone after heating at 1 …
sheet resistance of transparent electrode (claimed maximum, variant 1) |
| 700 Ω/sq |
graphene-based structures (carbon macro-molecular structures) |
sheet resistance of transparent electrode (claimed maximum, variant 2) | 44 Ω/sq | graphene-based structures (carbon macro-molecular structures) |
transparency of transparent electrode (claimed minimum, variant 3) | 87 % | graphene-based structures (carbon macro-molecular structures) |
sheet resistance of transparent electrode (claimed maximum, variant 3) | 600 Ω/sq | graphene-based structures (carbon macro-molecular structures) |
nanorods (semiconducting or conducting)
matrix material
nitrogen-doped graphene-based structures
graphitic material
Figure 3 c is an SEM image of the same large single sheet of graphene. Figure 3d is a single cross-section (top) that indicates step heights of less than 0.6 nm as the AFM tip traverses the solid line in Figure 3b. A histogram (bottom of Figure 3d) of height profiles collected over the entire area …
Figure 3 c is an SEM image of the same large single sheet of graphene. Figure 3d is a single cross-section (top) that indicates step heights of less than 0.6 nm as the AFM tip traverses the solid line in Figure 3b. A histogram (bottom of Figure 3d) of height profiles collected over the entire area …
Figure 8 shows representative SEM and AFM images of G-CNT film, along with 3-D topographies of (Figure 8a) Chemically converted graphene. (Figure 8b) Single wall carbon nanotubes network. (Figure 8c) G-CNT hybrid film. Note that the dense network of G- CNT film exceeds the percolation threshold with …
Figure 8 shows representative SEM and AFM images of G-CNT film, along with 3-D topographies of (Figure 8a) Chemically converted graphene. (Figure 8b) Single wall carbon nanotubes network. (Figure 8c) G-CNT hybrid film. Note that the dense network of G- CNT film exceeds the percolation threshold with …
Figure 9 shows optical, electrical and mechanical characterization of G-CNT films according to an embodiment of the current invention. Figure 9a shows photographs of G- CNT film with increasing spin speed (from left to right), 1,050, 1,250, 1,500, 1,750 RPM, respectively. Figure 9b shows optical …
Figure 10 shows representative SEM images of a variety patterns of G-CNT electrode and device structure along with current density-voltage (J- V) curves. Figure l0a shows SEM images of G-CNT patterns spin-coated on Si/SiO₂ substrates. Figure lO b shows a 7 58086-264718 device configuration of G-CNT …
Figure 10 shows representative SEM images of a variety patterns of G-CNT electrode and device structure along with current density-voltage (J- V) curves. Figure l0a shows SEM images of G-CNT patterns spin-coated on Si/SiO₂ substrates. Figure lO b shows a 7 58086-264718 device configuration of G-CNT …
Figure 11 shows sheet resistance of G-CNT films before (squares) and after (circles) chemical doping. An exposure of 15 minutes to room temperature vapors resulted in a decrease in sheet resistance by a factor of 1.5 to 2 for all deposited films.
Figure 13 shows Micro Raman spectra that were collected inside and outside a rectangular region on (Figure 13a) glass and (Figure 13b) Si/SiO₂ according to an embodiment of the current invention. Raman intensity mapping of the G peak indicates that graphene has been completely removed from a …
Figure 16 shows an atomic force microscope image and the corresponding line- scan that confirm a step height of less than 1 nm, indicative of single sheet graphene according to this embodiment of the current invention. DETAILED DESCRIPTI O N [0031] Some embodiments of the current invention are …
Figure 14 shows Si 2p (top) and C 1 s (bottom) XPS spectra from the deposited region both before and after annealing. The Si peak is predominately Si/SiO 2, but displays a large shoulder consistent with dimethylsiloxane before the annealing process. The shoulder was nearly gone after heating at 1 …
sheet resistance of transparent electrode (claimed maximum, variant 1) |
| 700 Ω/sq |
graphene-based structures (carbon macro-molecular structures) |
sheet resistance of transparent electrode (claimed maximum, variant 2) | 44 Ω/sq | graphene-based structures (carbon macro-molecular structures) |
transparency of transparent electrode (claimed minimum, variant 3) | 87 % | graphene-based structures (carbon macro-molecular structures) |
sheet resistance of transparent electrode (claimed maximum, variant 3) | 600 Ω/sq | graphene-based structures (carbon macro-molecular structures) |
nanorods (semiconducting or conducting)
matrix material
nitrogen-doped graphene-based structures
graphitic material
Figure 3 c is an SEM image of the same large single sheet of graphene. Figure 3d is a single cross-section (top) that indicates step heights of less than 0.6 nm as the AFM tip traverses the solid line in Figure 3b. A histogram (bottom of Figure 3d) of height profiles collected over the entire area …
Figure 3 c is an SEM image of the same large single sheet of graphene. Figure 3d is a single cross-section (top) that indicates step heights of less than 0.6 nm as the AFM tip traverses the solid line in Figure 3b. A histogram (bottom of Figure 3d) of height profiles collected over the entire area …
Figure 8 shows representative SEM and AFM images of G-CNT film, along with 3-D topographies of (Figure 8a) Chemically converted graphene. (Figure 8b) Single wall carbon nanotubes network. (Figure 8c) G-CNT hybrid film. Note that the dense network of G- CNT film exceeds the percolation threshold with …
Figure 8 shows representative SEM and AFM images of G-CNT film, along with 3-D topographies of (Figure 8a) Chemically converted graphene. (Figure 8b) Single wall carbon nanotubes network. (Figure 8c) G-CNT hybrid film. Note that the dense network of G- CNT film exceeds the percolation threshold with …
Figure 9 shows optical, electrical and mechanical characterization of G-CNT films according to an embodiment of the current invention. Figure 9a shows photographs of G- CNT film with increasing spin speed (from left to right), 1,050, 1,250, 1,500, 1,750 RPM, respectively. Figure 9b shows optical …
Figure 10 shows representative SEM images of a variety patterns of G-CNT electrode and device structure along with current density-voltage (J- V) curves. Figure l0a shows SEM images of G-CNT patterns spin-coated on Si/SiO₂ substrates. Figure lO b shows a 7 58086-264718 device configuration of G-CNT …
Figure 10 shows representative SEM images of a variety patterns of G-CNT electrode and device structure along with current density-voltage (J- V) curves. Figure l0a shows SEM images of G-CNT patterns spin-coated on Si/SiO₂ substrates. Figure lO b shows a 7 58086-264718 device configuration of G-CNT …
Figure 11 shows sheet resistance of G-CNT films before (squares) and after (circles) chemical doping. An exposure of 15 minutes to room temperature vapors resulted in a decrease in sheet resistance by a factor of 1.5 to 2 for all deposited films.
Figure 13 shows Micro Raman spectra that were collected inside and outside a rectangular region on (Figure 13a) glass and (Figure 13b) Si/SiO₂ according to an embodiment of the current invention. Raman intensity mapping of the G peak indicates that graphene has been completely removed from a …
Figure 16 shows an atomic force microscope image and the corresponding line- scan that confirm a step height of less than 1 nm, indicative of single sheet graphene according to this embodiment of the current invention. DETAILED DESCRIPTI O N [0031] Some embodiments of the current invention are …
Figure 14 shows Si 2p (top) and C 1 s (bottom) XPS spectra from the deposited region both before and after annealing. The Si peak is predominately Si/SiO 2, but displays a large shoulder consistent with dimethylsiloxane before the annealing process. The shoulder was nearly gone after heating at 1 …
sheet resistance of transparent electrode (claimed maximum, variant 1) |
| 700 Ω/sq |
graphene-based structures (carbon macro-molecular structures) |
sheet resistance of transparent electrode (claimed maximum, variant 2) | 44 Ω/sq | graphene-based structures (carbon macro-molecular structures) |
transparency of transparent electrode (claimed minimum, variant 3) | 87 % | graphene-based structures (carbon macro-molecular structures) |
sheet resistance of transparent electrode (claimed maximum, variant 3) | 600 Ω/sq | graphene-based structures (carbon macro-molecular structures) |