Patent
US 9,527,741COMPOSITIONS COMPRISING ENHANCED GRAPHENE OXIDE STRUCTURES AND RELATED METHODS
Priyank Vijaya Kumar
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 9,527,741Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 shows (a) normalized UV-Vis absorption spectra for suspensions comprising a graphene oxide species, according to some embodiments; (b) normalized UV-Vis …
FIG. 2 shows (a) thermogravimetric thermograms for graphene oxide species, according to some embodiments; (b) FTIR spectra for graphene oxide species, …
FIG. 3 shows (a) a schematic illustration of graphene oxide species, according to some embodiments; and (b) plots of total energy as a function of domain size …
FIG. 4 shows (a) computed activation barriers for the diffusion of certain oxygen- 25 containing functional groups, according to some embodiments; (b) a plot of …
FIG. 5 shows a plot of spectral i rr adiance as a function of wavelength for embodiments described herein; -8-
FIG. 6 shows X-ray photoelectron spectroscopy (XPS) data comparing carbon is spectra for suspensions comprising a graphene oxide species, according to some …
FIG. 7 shows XPS data comparing carbon i s spectra for solid compositions comprising a graphene oxide species, according to some embodiments;
FIG. 8 shows XPS data comparing oxygen i s spectra for solid compositions comprising a graphene oxide species, according to some embodiments;
FIG. 9 shows FTIR spectra for solid compositions comprising graphene oxide species, 10 according to some embodiments;
FIG. 10 shows photographs of suspensions comprising graphene oxide species, according to some embodiments;
FIG. 11 shows the energetics of the phase separation process, according to some embodiments; 15
FIG. 12 shows estimation of optical gaps in phase-separated GO structures, according to some embodiments;
FIG. 13 shows (a) an image (left) and a plot of intensity as a function of kinetic energy (right) for a composition comprising a graphene oxide species, …
FIG. 14 shows un-normalized UV-Vis absorption spectra for suspensions comprising a graphene oxide species, according to some embodiments (left), and for solid …
FIG. 15 shows (a) Raman mapping on solid compositions comprising graphene oxide 25 species, according to some embodiments; and (b) Raman measurements on solid …
FIG. 16 shows photoluminescence spectra for thin films comprising graphene oxide species, according to some embodiments; and
FIG. 17 shows X-ray diffraction (XRD) data for a composition comprising a graphene 30 oxide species, according to some embodiments. Other aspects, embodiments …
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, comprising: heating a first composition comprising a first graphene oxide species at a temperature of about 150 0 C or less for a period of at least about 1 day in the absence of a chemical reagent capable of reacting with the first graphene oxide species, thereby producing a second composition comprising a second graphene oxide species different from the first graphene oxide species, wherein the second graphene oxide species has an atomic % of oxygen of at least about 20 at%.
A method as in claim 1, wherein the first graphene oxide species comprises oxygen-containing groups attached to the first graphene oxide species and dispersed over a surface of the first graphene oxide species.
A method as in claim 1, wherein the atomic % of oxygen in the second graphene oxide species is at least about 50% of the atomic % of oxygen in the first graphene oxide species.
A method as in claim 1, wherein the second composition comprises: a first set of domains comprising carbon atoms substituted with oxygen-containing groups; and a second set of domains comprising carbon atoms that are substantially free of oxygen- containing groups. 4759924.1 Application No.: 14/270,276 3 Docket No.: M0925.70412US01 After Final Office Action of May 4,
A method as in claim 1, wherein the chemical reagent is a reducing agent and/or a strong base.
A method as in claim 1, wherein the heating step is performed at a temperature of about 120 ° C or less.
A method as in claim 1, wherein the heating step is performed for a period of at least about 4 days.
A method as in claim 1, wherein the heating step is performed at atmospheric pressure and/or at a pH of about 7. 4759924.1 Application No.: 14/270,276 4 Docket No.: M0925.70412US01 After Final Office Action of
A method as in claim 1, wherein the first and second compositions are in substantially solid form.
A method as in claim 1, wherein the first and second compositions further comprise a fluid carrier, wherein the fluid carrier is a non-aqueous solution, an aqueous solution, or water.
A method as in claim 1, wherein the atomic % of oxygen in the second graphene oxide species is at least about 25 at%.
A method as in claim 1, wherein the second graphene oxide species absorbs at least about 20% more photons in the visible range than the first graphene oxide species, when placed under essentially identical conditions.
A method as in claim 1, wherein the second graphene oxide species exhibits a sheet resistance of about 1 x 10 9 ohms/sq or less.
A method as in claim 1, wherein the first graphene oxide species exhibits a first peak emission wavelength and the second graphene oxide species exhibits a second peak emission wavelength, wherein the second peak emission wavelength is at least about 50 nm less than the first peak emission wavelength.
A method as in claim 1, wherein the second graphene oxide species exhibits a peak emission wavelength of about 500 nm or less.
A method as in claim 1, wherein the second graphene oxide species has a band gap of about 5 eV or less.
A method as in claim 1, wherein the second graphene oxide species is arranged in a device and/or in contact with one or more electrodes.
A method as in claim 1, wherein the heating step is performed at a temperature of about 100 ° C or less. 4759924.1 Application No.: 14/270,276 6 Docket No.: M0925.70412US01 After Final Office Action of
A method as in claim 1, wherein the heating step is performed at a temperature of about 80 ° C or less. 4759924.1
A method, comprising: heating a first composition comprising a first graphene oxide species at a temperature of about 150 0 C or less for a period of at least about 1 day, thereby producing a second composition comprising a second graphene oxide species, wherein the atomic % of oxygen in the second graphene oxide species is at least about 50% of the atomic % of oxygen in the first graphene oxide species.
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canceled
canceled
38-45. canceled
47-49. canceled
51-53. canceled
55-57. canceled
59-62. canceled
canceled
67-70. canceled
72-107. canceled
Materials described outside the worked examples.
first graphene oxide species
second graphene oxide species
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1 shows (a) normalized UV-Vis absorption spectra for suspensions comprising a graphene oxide species, according to some embodiments; (b) normalized UV-Vis …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Fet Sheet Resistance | ≤ 1000000000 ohms/sq | second graphene oxide species |
Optical Band Gap | ≤ 5 eV |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,527,741Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 shows (a) normalized UV-Vis absorption spectra for suspensions comprising a graphene oxide species, according to some embodiments; (b) normalized UV-Vis …
FIG. 2 shows (a) thermogravimetric thermograms for graphene oxide species, according to some embodiments; (b) FTIR spectra for graphene oxide species, …
FIG. 3 shows (a) a schematic illustration of graphene oxide species, according to some embodiments; and (b) plots of total energy as a function of domain size …
FIG. 4 shows (a) computed activation barriers for the diffusion of certain oxygen- 25 containing functional groups, according to some embodiments; (b) a plot of …
FIG. 5 shows a plot of spectral i rr adiance as a function of wavelength for embodiments described herein; -8-
FIG. 6 shows X-ray photoelectron spectroscopy (XPS) data comparing carbon is spectra for suspensions comprising a graphene oxide species, according to some …
FIG. 7 shows XPS data comparing carbon i s spectra for solid compositions comprising a graphene oxide species, according to some embodiments;
FIG. 8 shows XPS data comparing oxygen i s spectra for solid compositions comprising a graphene oxide species, according to some embodiments;
FIG. 9 shows FTIR spectra for solid compositions comprising graphene oxide species, 10 according to some embodiments;
FIG. 10 shows photographs of suspensions comprising graphene oxide species, according to some embodiments;
FIG. 11 shows the energetics of the phase separation process, according to some embodiments; 15
FIG. 12 shows estimation of optical gaps in phase-separated GO structures, according to some embodiments;
FIG. 13 shows (a) an image (left) and a plot of intensity as a function of kinetic energy (right) for a composition comprising a graphene oxide species, …
FIG. 14 shows un-normalized UV-Vis absorption spectra for suspensions comprising a graphene oxide species, according to some embodiments (left), and for solid …
FIG. 15 shows (a) Raman mapping on solid compositions comprising graphene oxide 25 species, according to some embodiments; and (b) Raman measurements on solid …
FIG. 16 shows photoluminescence spectra for thin films comprising graphene oxide species, according to some embodiments; and
FIG. 17 shows X-ray diffraction (XRD) data for a composition comprising a graphene 30 oxide species, according to some embodiments. Other aspects, embodiments …
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, comprising: heating a first composition comprising a first graphene oxide species at a temperature of about 150 0 C or less for a period of at least about 1 day in the absence of a chemical reagent capable of reacting with the first graphene oxide species, thereby producing a second composition comprising a second graphene oxide species different from the first graphene oxide species, wherein the second graphene oxide species has an atomic % of oxygen of at least about 20 at%.
A method as in claim 1, wherein the first graphene oxide species comprises oxygen-containing groups attached to the first graphene oxide species and dispersed over a surface of the first graphene oxide species.
A method as in claim 1, wherein the atomic % of oxygen in the second graphene oxide species is at least about 50% of the atomic % of oxygen in the first graphene oxide species.
A method as in claim 1, wherein the second composition comprises: a first set of domains comprising carbon atoms substituted with oxygen-containing groups; and a second set of domains comprising carbon atoms that are substantially free of oxygen- containing groups. 4759924.1 Application No.: 14/270,276 3 Docket No.: M0925.70412US01 After Final Office Action of May 4,
A method as in claim 1, wherein the chemical reagent is a reducing agent and/or a strong base.
A method as in claim 1, wherein the heating step is performed at a temperature of about 120 ° C or less.
A method as in claim 1, wherein the heating step is performed for a period of at least about 4 days.
A method as in claim 1, wherein the heating step is performed at atmospheric pressure and/or at a pH of about 7. 4759924.1 Application No.: 14/270,276 4 Docket No.: M0925.70412US01 After Final Office Action of
A method as in claim 1, wherein the first and second compositions are in substantially solid form.
A method as in claim 1, wherein the first and second compositions further comprise a fluid carrier, wherein the fluid carrier is a non-aqueous solution, an aqueous solution, or water.
A method as in claim 1, wherein the atomic % of oxygen in the second graphene oxide species is at least about 25 at%.
A method as in claim 1, wherein the second graphene oxide species absorbs at least about 20% more photons in the visible range than the first graphene oxide species, when placed under essentially identical conditions.
A method as in claim 1, wherein the second graphene oxide species exhibits a sheet resistance of about 1 x 10 9 ohms/sq or less.
A method as in claim 1, wherein the first graphene oxide species exhibits a first peak emission wavelength and the second graphene oxide species exhibits a second peak emission wavelength, wherein the second peak emission wavelength is at least about 50 nm less than the first peak emission wavelength.
A method as in claim 1, wherein the second graphene oxide species exhibits a peak emission wavelength of about 500 nm or less.
A method as in claim 1, wherein the second graphene oxide species has a band gap of about 5 eV or less.
A method as in claim 1, wherein the second graphene oxide species is arranged in a device and/or in contact with one or more electrodes.
A method as in claim 1, wherein the heating step is performed at a temperature of about 100 ° C or less. 4759924.1 Application No.: 14/270,276 6 Docket No.: M0925.70412US01 After Final Office Action of
A method as in claim 1, wherein the heating step is performed at a temperature of about 80 ° C or less. 4759924.1
A method, comprising: heating a first composition comprising a first graphene oxide species at a temperature of about 150 0 C or less for a period of at least about 1 day, thereby producing a second composition comprising a second graphene oxide species, wherein the atomic % of oxygen in the second graphene oxide species is at least about 50% of the atomic % of oxygen in the first graphene oxide species.
8-16. canceled
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22-27. canceled
29-32. canceled
canceled
canceled
38-45. canceled
47-49. canceled
51-53. canceled
55-57. canceled
59-62. canceled
canceled
67-70. canceled
72-107. canceled
Materials described outside the worked examples.
first graphene oxide species
second graphene oxide species
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1 shows (a) normalized UV-Vis absorption spectra for suspensions comprising a graphene oxide species, according to some embodiments; (b) normalized UV-Vis …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Fet Sheet Resistance | ≤ 1000000000 ohms/sq | second graphene oxide species |
Optical Band Gap | ≤ 5 eV |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,527,741Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 shows (a) normalized UV-Vis absorption spectra for suspensions comprising a graphene oxide species, according to some embodiments; (b) normalized UV-Vis …
FIG. 2 shows (a) thermogravimetric thermograms for graphene oxide species, according to some embodiments; (b) FTIR spectra for graphene oxide species, …
FIG. 3 shows (a) a schematic illustration of graphene oxide species, according to some embodiments; and (b) plots of total energy as a function of domain size …
FIG. 4 shows (a) computed activation barriers for the diffusion of certain oxygen- 25 containing functional groups, according to some embodiments; (b) a plot of …
FIG. 5 shows a plot of spectral i rr adiance as a function of wavelength for embodiments described herein; -8-
FIG. 6 shows X-ray photoelectron spectroscopy (XPS) data comparing carbon is spectra for suspensions comprising a graphene oxide species, according to some …
FIG. 7 shows XPS data comparing carbon i s spectra for solid compositions comprising a graphene oxide species, according to some embodiments;
FIG. 8 shows XPS data comparing oxygen i s spectra for solid compositions comprising a graphene oxide species, according to some embodiments;
FIG. 9 shows FTIR spectra for solid compositions comprising graphene oxide species, 10 according to some embodiments;
FIG. 10 shows photographs of suspensions comprising graphene oxide species, according to some embodiments;
FIG. 11 shows the energetics of the phase separation process, according to some embodiments; 15
FIG. 12 shows estimation of optical gaps in phase-separated GO structures, according to some embodiments;
FIG. 13 shows (a) an image (left) and a plot of intensity as a function of kinetic energy (right) for a composition comprising a graphene oxide species, …
FIG. 14 shows un-normalized UV-Vis absorption spectra for suspensions comprising a graphene oxide species, according to some embodiments (left), and for solid …
FIG. 15 shows (a) Raman mapping on solid compositions comprising graphene oxide 25 species, according to some embodiments; and (b) Raman measurements on solid …
FIG. 16 shows photoluminescence spectra for thin films comprising graphene oxide species, according to some embodiments; and
FIG. 17 shows X-ray diffraction (XRD) data for a composition comprising a graphene 30 oxide species, according to some embodiments. Other aspects, embodiments …
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, comprising: heating a first composition comprising a first graphene oxide species at a temperature of about 150 0 C or less for a period of at least about 1 day in the absence of a chemical reagent capable of reacting with the first graphene oxide species, thereby producing a second composition comprising a second graphene oxide species different from the first graphene oxide species, wherein the second graphene oxide species has an atomic % of oxygen of at least about 20 at%.
A method as in claim 1, wherein the first graphene oxide species comprises oxygen-containing groups attached to the first graphene oxide species and dispersed over a surface of the first graphene oxide species.
A method as in claim 1, wherein the atomic % of oxygen in the second graphene oxide species is at least about 50% of the atomic % of oxygen in the first graphene oxide species.
A method as in claim 1, wherein the second composition comprises: a first set of domains comprising carbon atoms substituted with oxygen-containing groups; and a second set of domains comprising carbon atoms that are substantially free of oxygen- containing groups. 4759924.1 Application No.: 14/270,276 3 Docket No.: M0925.70412US01 After Final Office Action of May 4,
A method as in claim 1, wherein the chemical reagent is a reducing agent and/or a strong base.
A method as in claim 1, wherein the heating step is performed at a temperature of about 120 ° C or less.
A method as in claim 1, wherein the heating step is performed for a period of at least about 4 days.
A method as in claim 1, wherein the heating step is performed at atmospheric pressure and/or at a pH of about 7. 4759924.1 Application No.: 14/270,276 4 Docket No.: M0925.70412US01 After Final Office Action of
A method as in claim 1, wherein the first and second compositions are in substantially solid form.
A method as in claim 1, wherein the first and second compositions further comprise a fluid carrier, wherein the fluid carrier is a non-aqueous solution, an aqueous solution, or water.
A method as in claim 1, wherein the atomic % of oxygen in the second graphene oxide species is at least about 25 at%.
A method as in claim 1, wherein the second graphene oxide species absorbs at least about 20% more photons in the visible range than the first graphene oxide species, when placed under essentially identical conditions.
A method as in claim 1, wherein the second graphene oxide species exhibits a sheet resistance of about 1 x 10 9 ohms/sq or less.
A method as in claim 1, wherein the first graphene oxide species exhibits a first peak emission wavelength and the second graphene oxide species exhibits a second peak emission wavelength, wherein the second peak emission wavelength is at least about 50 nm less than the first peak emission wavelength.
A method as in claim 1, wherein the second graphene oxide species exhibits a peak emission wavelength of about 500 nm or less.
A method as in claim 1, wherein the second graphene oxide species has a band gap of about 5 eV or less.
A method as in claim 1, wherein the second graphene oxide species is arranged in a device and/or in contact with one or more electrodes.
A method as in claim 1, wherein the heating step is performed at a temperature of about 100 ° C or less. 4759924.1 Application No.: 14/270,276 6 Docket No.: M0925.70412US01 After Final Office Action of
A method as in claim 1, wherein the heating step is performed at a temperature of about 80 ° C or less. 4759924.1
A method, comprising: heating a first composition comprising a first graphene oxide species at a temperature of about 150 0 C or less for a period of at least about 1 day, thereby producing a second composition comprising a second graphene oxide species, wherein the atomic % of oxygen in the second graphene oxide species is at least about 50% of the atomic % of oxygen in the first graphene oxide species.
8-16. canceled
18-20. canceled
22-27. canceled
29-32. canceled
canceled
canceled
38-45. canceled
47-49. canceled
51-53. canceled
55-57. canceled
59-62. canceled
canceled
67-70. canceled
72-107. canceled
Materials described outside the worked examples.
first graphene oxide species
second graphene oxide species
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1 shows (a) normalized UV-Vis absorption spectra for suspensions comprising a graphene oxide species, according to some embodiments; (b) normalized UV-Vis …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Fet Sheet Resistance | ≤ 1000000000 ohms/sq | second graphene oxide species |
Optical Band Gap | ≤ 5 eV |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,527,741Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 shows (a) normalized UV-Vis absorption spectra for suspensions comprising a graphene oxide species, according to some embodiments; (b) normalized UV-Vis …
FIG. 2 shows (a) thermogravimetric thermograms for graphene oxide species, according to some embodiments; (b) FTIR spectra for graphene oxide species, …
FIG. 3 shows (a) a schematic illustration of graphene oxide species, according to some embodiments; and (b) plots of total energy as a function of domain size …
FIG. 4 shows (a) computed activation barriers for the diffusion of certain oxygen- 25 containing functional groups, according to some embodiments; (b) a plot of …
FIG. 5 shows a plot of spectral i rr adiance as a function of wavelength for embodiments described herein; -8-
FIG. 6 shows X-ray photoelectron spectroscopy (XPS) data comparing carbon is spectra for suspensions comprising a graphene oxide species, according to some …
FIG. 7 shows XPS data comparing carbon i s spectra for solid compositions comprising a graphene oxide species, according to some embodiments;
FIG. 8 shows XPS data comparing oxygen i s spectra for solid compositions comprising a graphene oxide species, according to some embodiments;
FIG. 9 shows FTIR spectra for solid compositions comprising graphene oxide species, 10 according to some embodiments;
FIG. 10 shows photographs of suspensions comprising graphene oxide species, according to some embodiments;
FIG. 11 shows the energetics of the phase separation process, according to some embodiments; 15
FIG. 12 shows estimation of optical gaps in phase-separated GO structures, according to some embodiments;
FIG. 13 shows (a) an image (left) and a plot of intensity as a function of kinetic energy (right) for a composition comprising a graphene oxide species, …
FIG. 14 shows un-normalized UV-Vis absorption spectra for suspensions comprising a graphene oxide species, according to some embodiments (left), and for solid …
FIG. 15 shows (a) Raman mapping on solid compositions comprising graphene oxide 25 species, according to some embodiments; and (b) Raman measurements on solid …
FIG. 16 shows photoluminescence spectra for thin films comprising graphene oxide species, according to some embodiments; and
FIG. 17 shows X-ray diffraction (XRD) data for a composition comprising a graphene 30 oxide species, according to some embodiments. Other aspects, embodiments …
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, comprising: heating a first composition comprising a first graphene oxide species at a temperature of about 150 0 C or less for a period of at least about 1 day in the absence of a chemical reagent capable of reacting with the first graphene oxide species, thereby producing a second composition comprising a second graphene oxide species different from the first graphene oxide species, wherein the second graphene oxide species has an atomic % of oxygen of at least about 20 at%.
A method as in claim 1, wherein the first graphene oxide species comprises oxygen-containing groups attached to the first graphene oxide species and dispersed over a surface of the first graphene oxide species.
A method as in claim 1, wherein the atomic % of oxygen in the second graphene oxide species is at least about 50% of the atomic % of oxygen in the first graphene oxide species.
A method as in claim 1, wherein the second composition comprises: a first set of domains comprising carbon atoms substituted with oxygen-containing groups; and a second set of domains comprising carbon atoms that are substantially free of oxygen- containing groups. 4759924.1 Application No.: 14/270,276 3 Docket No.: M0925.70412US01 After Final Office Action of May 4,
A method as in claim 1, wherein the chemical reagent is a reducing agent and/or a strong base.
A method as in claim 1, wherein the heating step is performed at a temperature of about 120 ° C or less.
A method as in claim 1, wherein the heating step is performed for a period of at least about 4 days.
A method as in claim 1, wherein the heating step is performed at atmospheric pressure and/or at a pH of about 7. 4759924.1 Application No.: 14/270,276 4 Docket No.: M0925.70412US01 After Final Office Action of
A method as in claim 1, wherein the first and second compositions are in substantially solid form.
A method as in claim 1, wherein the first and second compositions further comprise a fluid carrier, wherein the fluid carrier is a non-aqueous solution, an aqueous solution, or water.
A method as in claim 1, wherein the atomic % of oxygen in the second graphene oxide species is at least about 25 at%.
A method as in claim 1, wherein the second graphene oxide species absorbs at least about 20% more photons in the visible range than the first graphene oxide species, when placed under essentially identical conditions.
A method as in claim 1, wherein the second graphene oxide species exhibits a sheet resistance of about 1 x 10 9 ohms/sq or less.
A method as in claim 1, wherein the first graphene oxide species exhibits a first peak emission wavelength and the second graphene oxide species exhibits a second peak emission wavelength, wherein the second peak emission wavelength is at least about 50 nm less than the first peak emission wavelength.
A method as in claim 1, wherein the second graphene oxide species exhibits a peak emission wavelength of about 500 nm or less.
A method as in claim 1, wherein the second graphene oxide species has a band gap of about 5 eV or less.
A method as in claim 1, wherein the second graphene oxide species is arranged in a device and/or in contact with one or more electrodes.
A method as in claim 1, wherein the heating step is performed at a temperature of about 100 ° C or less. 4759924.1 Application No.: 14/270,276 6 Docket No.: M0925.70412US01 After Final Office Action of
A method as in claim 1, wherein the heating step is performed at a temperature of about 80 ° C or less. 4759924.1
A method, comprising: heating a first composition comprising a first graphene oxide species at a temperature of about 150 0 C or less for a period of at least about 1 day, thereby producing a second composition comprising a second graphene oxide species, wherein the atomic % of oxygen in the second graphene oxide species is at least about 50% of the atomic % of oxygen in the first graphene oxide species.
8-16. canceled
18-20. canceled
22-27. canceled
29-32. canceled
canceled
canceled
38-45. canceled
47-49. canceled
51-53. canceled
55-57. canceled
59-62. canceled
canceled
67-70. canceled
72-107. canceled
Materials described outside the worked examples.
first graphene oxide species
second graphene oxide species
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1 shows (a) normalized UV-Vis absorption spectra for suspensions comprising a graphene oxide species, according to some embodiments; (b) normalized UV-Vis …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Fet Sheet Resistance | ≤ 1000000000 ohms/sq | second graphene oxide species |
Optical Band Gap | ≤ 5 eV |
Related documents with shared materials, methods, properties, or citations.
graphene oxide (as-synthesized, Hummers method)
FIG. 2 shows (a) thermogravimetric thermograms for graphene oxide species, according to some embodiments; (b) FTIR spectra for graphene oxide species, …
FIG. 2 shows (a) thermogravimetric thermograms for graphene oxide species, according to some embodiments; (b) FTIR spectra for graphene oxide species, …
FIG. 6 shows X-ray photoelectron spectroscopy (XPS) data comparing carbon is spectra for suspensions comprising a graphene oxide species, according to some …
FIG. 7 shows XPS data comparing carbon i s spectra for solid compositions comprising a graphene oxide species, according to some embodiments;
FIG. 8 shows XPS data comparing oxygen i s spectra for solid compositions comprising a graphene oxide species, according to some embodiments;
FIG. 9 shows FTIR spectra for solid compositions comprising graphene oxide species, 10 according to some embodiments;
FIG. 14 shows un-normalized UV-Vis absorption spectra for suspensions comprising a graphene oxide species, according to some embodiments (left), and for solid …
FIG. 15 shows (a) Raman mapping on solid compositions comprising graphene oxide 25 species, according to some embodiments; and (b) Raman measurements on solid …
FIG. 16 shows photoluminescence spectra for thin films comprising graphene oxide species, according to some embodiments; and
FIG. 17 shows X-ray diffraction (XRD) data for a composition comprising a graphene 30 oxide species, according to some embodiments. Other aspects, embodiments …
PL Peak | ≤ 500 nm | second graphene oxide species |
Atomic Percent Oxygen | ≥ 20 at% | second graphene oxide species |
Atomic Percent Oxygen Background | 30–35 at% | graphene oxide (as-synthesized, Hummers method) |
Thickness | 350–800 nm | — |
Thickness | 1–5 nm | — |
Thickness | 1–10 nm | — |
Thickness | 1–15 nm | — |
Thickness | 1–20 nm | — |
Thickness | 1–25 nm | — |
Thickness | 1–30 nm | — |
Thickness | 5–10 nm | — |
Thickness | 5–15 nm | — |
Thickness | 5–20 nm | — |
Thickness | 5–25 nm | — |
Thickness | 5–30 nm | — |
Thickness | 10–20 nm | — |
Thickness | 10–25 nm | — |
Thickness | 10–30 nm | — |
Thickness | 15–30 nm | — |
Temperature | 30–80 °C | — |
Temperature | 30–100 °C | — |
Temperature | 30–125 °C | — |
Temperature | 30–150 °C | — |
Temperature | 40–80 °C | — |
Temperature | 40–100 °C | — |
Temperature | 40–125 °C | — |
Temperature | 40–150 °C | — |
Temperature | 50–80 °C | — |
Temperature | 50–125 °C | — |
Temperature | 50–150 °C | — |
Temperature | 60–80 °C | — |
Temperature | 60–100 °C | — |
Temperature | 60–125 °C | — |
Temperature | 60–150 °C | — |
Temperature | 70–100 °C | — |
Temperature | 70–125 °C | — |
Temperature | 70–150 °C | — |
Temperature | 80–100 °C | — |
Temperature | 80–125 °C | — |
Temperature | 80–150 °C | — |
Temperature | 100–125 °C | — |
Temperature | 100–150 °C | — |
Pressure | 1–105 Pa | — |
Pressure | 1–106 Pa | — |
Pressure | 1–109 Pa | — |
Pressure | 3–109 Pa | — |
— | 0.5–1 eV | — |
— | 0.5–1.5 eV | — |
— | 0.5–2 eV | — |
— | 0.5–2.5 eV | — |
— | 0.5–3 eV | — |
— | 0.5–4 eV | — |
— | 0.5–5 eV | — |
— | 1–1.5 eV | — |
— | 1–2.5 eV | — |
— | 1–3 eV | — |
— | 1–4 eV | — |
— | 1–5 eV | — |
— | 1.5–2 eV | — |
— | 1.5–2.5 eV | — |
— | 1.5–3 eV | — |
— | 1.5–4 eV | — |
— | 1.5–5 eV | — |
Thickness | 400–450 nm | — |
Thickness | 400–500 nm | — |
— | 2–2.8 eV | — |
Temperature | 10–300 K | — |
Thickness | 1–2 nm | — |
Thickness | 1–3 nm | — |
Thickness | 1–4 nm | — |
Thickness | 2–4 nm | — |
Thickness | 2–5 nm | — |
Thickness | 2–10 nm | — |
Thickness | 2–15 nm | — |
Thickness | 2–20 nm | — |
Pressure | 0.000001 Pa | — |
Thickness | 200–1100 nm | — |
Thickness | 200–800 nm | — |
Thickness | 800–4000 cm | — |
Thickness | 400–750 nm | — |
— | 2–2.5 eV | — |
Thickness | 400–700 nm | — |
Thickness | 200–300 nm | — |
— | 2.3–2.4 eV | — |
— | 2–2.75 eV | — |
Pressure | ≤ 1 Pa | — |
— | ≤ 0.03 eV | — |
Thickness | ≥ 1 nm | — |
Thickness | ≥ 2 nm | — |
Thickness | ≥ 3 nm | — |
Thickness | ≥ 10 nm | — |
Thickness | ≥ 5 nm | — |
Thickness | ≥ 15 nm | — |
Thickness | ≥ 20 nm | — |
Thickness | ≥ 25 nm | — |
Thickness | ≥ 4 nm | — |
Pressure | ≥ 0.000001 Pa | — |
Pressure | ≥ 0.0001 Pa | — |
Pressure | ≥ 0.01 Pa | — |
Pressure | ≥ 1 Pa | — |
Pressure | ≥ 100 Pa | — |
Pressure | ≥ 10 Pa | — |
Thickness | ≥ 50 nm | — |
Thickness | 5–300 nm | — |
graphene oxide (as-synthesized, Hummers method)
FIG. 2 shows (a) thermogravimetric thermograms for graphene oxide species, according to some embodiments; (b) FTIR spectra for graphene oxide species, …
FIG. 2 shows (a) thermogravimetric thermograms for graphene oxide species, according to some embodiments; (b) FTIR spectra for graphene oxide species, …
FIG. 6 shows X-ray photoelectron spectroscopy (XPS) data comparing carbon is spectra for suspensions comprising a graphene oxide species, according to some …
FIG. 7 shows XPS data comparing carbon i s spectra for solid compositions comprising a graphene oxide species, according to some embodiments;
FIG. 8 shows XPS data comparing oxygen i s spectra for solid compositions comprising a graphene oxide species, according to some embodiments;
FIG. 9 shows FTIR spectra for solid compositions comprising graphene oxide species, 10 according to some embodiments;
FIG. 14 shows un-normalized UV-Vis absorption spectra for suspensions comprising a graphene oxide species, according to some embodiments (left), and for solid …
FIG. 15 shows (a) Raman mapping on solid compositions comprising graphene oxide 25 species, according to some embodiments; and (b) Raman measurements on solid …
FIG. 16 shows photoluminescence spectra for thin films comprising graphene oxide species, according to some embodiments; and
FIG. 17 shows X-ray diffraction (XRD) data for a composition comprising a graphene 30 oxide species, according to some embodiments. Other aspects, embodiments …
PL Peak | ≤ 500 nm | second graphene oxide species |
Atomic Percent Oxygen | ≥ 20 at% | second graphene oxide species |
Atomic Percent Oxygen Background | 30–35 at% | graphene oxide (as-synthesized, Hummers method) |
Thickness | 350–800 nm | — |
Thickness | 1–5 nm | — |
Thickness | 1–10 nm | — |
Thickness | 1–15 nm | — |
Thickness | 1–20 nm | — |
Thickness | 1–25 nm | — |
Thickness | 1–30 nm | — |
Thickness | 5–10 nm | — |
Thickness | 5–15 nm | — |
Thickness | 5–20 nm | — |
Thickness | 5–25 nm | — |
Thickness | 5–30 nm | — |
Thickness | 10–20 nm | — |
Thickness | 10–25 nm | — |
Thickness | 10–30 nm | — |
Thickness | 15–30 nm | — |
Temperature | 30–80 °C | — |
Temperature | 30–100 °C | — |
Temperature | 30–125 °C | — |
Temperature | 30–150 °C | — |
Temperature | 40–80 °C | — |
Temperature | 40–100 °C | — |
Temperature | 40–125 °C | — |
Temperature | 40–150 °C | — |
Temperature | 50–80 °C | — |
Temperature | 50–125 °C | — |
Temperature | 50–150 °C | — |
Temperature | 60–80 °C | — |
Temperature | 60–100 °C | — |
Temperature | 60–125 °C | — |
Temperature | 60–150 °C | — |
Temperature | 70–100 °C | — |
Temperature | 70–125 °C | — |
Temperature | 70–150 °C | — |
Temperature | 80–100 °C | — |
Temperature | 80–125 °C | — |
Temperature | 80–150 °C | — |
Temperature | 100–125 °C | — |
Temperature | 100–150 °C | — |
Pressure | 1–105 Pa | — |
Pressure | 1–106 Pa | — |
Pressure | 1–109 Pa | — |
Pressure | 3–109 Pa | — |
— | 0.5–1 eV | — |
— | 0.5–1.5 eV | — |
— | 0.5–2 eV | — |
— | 0.5–2.5 eV | — |
— | 0.5–3 eV | — |
— | 0.5–4 eV | — |
— | 0.5–5 eV | — |
— | 1–1.5 eV | — |
— | 1–2.5 eV | — |
— | 1–3 eV | — |
— | 1–4 eV | — |
— | 1–5 eV | — |
— | 1.5–2 eV | — |
— | 1.5–2.5 eV | — |
— | 1.5–3 eV | — |
— | 1.5–4 eV | — |
— | 1.5–5 eV | — |
Thickness | 400–450 nm | — |
Thickness | 400–500 nm | — |
— | 2–2.8 eV | — |
Temperature | 10–300 K | — |
Thickness | 1–2 nm | — |
Thickness | 1–3 nm | — |
Thickness | 1–4 nm | — |
Thickness | 2–4 nm | — |
Thickness | 2–5 nm | — |
Thickness | 2–10 nm | — |
Thickness | 2–15 nm | — |
Thickness | 2–20 nm | — |
Pressure | 0.000001 Pa | — |
Thickness | 200–1100 nm | — |
Thickness | 200–800 nm | — |
Thickness | 800–4000 cm | — |
Thickness | 400–750 nm | — |
— | 2–2.5 eV | — |
Thickness | 400–700 nm | — |
Thickness | 200–300 nm | — |
— | 2.3–2.4 eV | — |
— | 2–2.75 eV | — |
Pressure | ≤ 1 Pa | — |
— | ≤ 0.03 eV | — |
Thickness | ≥ 1 nm | — |
Thickness | ≥ 2 nm | — |
Thickness | ≥ 3 nm | — |
Thickness | ≥ 10 nm | — |
Thickness | ≥ 5 nm | — |
Thickness | ≥ 15 nm | — |
Thickness | ≥ 20 nm | — |
Thickness | ≥ 25 nm | — |
Thickness | ≥ 4 nm | — |
Pressure | ≥ 0.000001 Pa | — |
Pressure | ≥ 0.0001 Pa | — |
Pressure | ≥ 0.01 Pa | — |
Pressure | ≥ 1 Pa | — |
Pressure | ≥ 100 Pa | — |
Pressure | ≥ 10 Pa | — |
Thickness | ≥ 50 nm | — |
Thickness | 5–300 nm | — |
graphene oxide (as-synthesized, Hummers method)
FIG. 2 shows (a) thermogravimetric thermograms for graphene oxide species, according to some embodiments; (b) FTIR spectra for graphene oxide species, …
FIG. 2 shows (a) thermogravimetric thermograms for graphene oxide species, according to some embodiments; (b) FTIR spectra for graphene oxide species, …
FIG. 6 shows X-ray photoelectron spectroscopy (XPS) data comparing carbon is spectra for suspensions comprising a graphene oxide species, according to some …
FIG. 7 shows XPS data comparing carbon i s spectra for solid compositions comprising a graphene oxide species, according to some embodiments;
FIG. 8 shows XPS data comparing oxygen i s spectra for solid compositions comprising a graphene oxide species, according to some embodiments;
FIG. 9 shows FTIR spectra for solid compositions comprising graphene oxide species, 10 according to some embodiments;
FIG. 14 shows un-normalized UV-Vis absorption spectra for suspensions comprising a graphene oxide species, according to some embodiments (left), and for solid …
FIG. 15 shows (a) Raman mapping on solid compositions comprising graphene oxide 25 species, according to some embodiments; and (b) Raman measurements on solid …
FIG. 16 shows photoluminescence spectra for thin films comprising graphene oxide species, according to some embodiments; and
FIG. 17 shows X-ray diffraction (XRD) data for a composition comprising a graphene 30 oxide species, according to some embodiments. Other aspects, embodiments …
PL Peak | ≤ 500 nm | second graphene oxide species |
Atomic Percent Oxygen | ≥ 20 at% | second graphene oxide species |
Atomic Percent Oxygen Background | 30–35 at% | graphene oxide (as-synthesized, Hummers method) |
Thickness | 350–800 nm | — |
Thickness | 1–5 nm | — |
Thickness | 1–10 nm | — |
Thickness | 1–15 nm | — |
Thickness | 1–20 nm | — |
Thickness | 1–25 nm | — |
Thickness | 1–30 nm | — |
Thickness | 5–10 nm | — |
Thickness | 5–15 nm | — |
Thickness | 5–20 nm | — |
Thickness | 5–25 nm | — |
Thickness | 5–30 nm | — |
Thickness | 10–20 nm | — |
Thickness | 10–25 nm | — |
Thickness | 10–30 nm | — |
Thickness | 15–30 nm | — |
Temperature | 30–80 °C | — |
Temperature | 30–100 °C | — |
Temperature | 30–125 °C | — |
Temperature | 30–150 °C | — |
Temperature | 40–80 °C | — |
Temperature | 40–100 °C | — |
Temperature | 40–125 °C | — |
Temperature | 40–150 °C | — |
Temperature | 50–80 °C | — |
Temperature | 50–125 °C | — |
Temperature | 50–150 °C | — |
Temperature | 60–80 °C | — |
Temperature | 60–100 °C | — |
Temperature | 60–125 °C | — |
Temperature | 60–150 °C | — |
Temperature | 70–100 °C | — |
Temperature | 70–125 °C | — |
Temperature | 70–150 °C | — |
Temperature | 80–100 °C | — |
Temperature | 80–125 °C | — |
Temperature | 80–150 °C | — |
Temperature | 100–125 °C | — |
Temperature | 100–150 °C | — |
Pressure | 1–105 Pa | — |
Pressure | 1–106 Pa | — |
Pressure | 1–109 Pa | — |
Pressure | 3–109 Pa | — |
— | 0.5–1 eV | — |
— | 0.5–1.5 eV | — |
— | 0.5–2 eV | — |
— | 0.5–2.5 eV | — |
— | 0.5–3 eV | — |
— | 0.5–4 eV | — |
— | 0.5–5 eV | — |
— | 1–1.5 eV | — |
— | 1–2.5 eV | — |
— | 1–3 eV | — |
— | 1–4 eV | — |
— | 1–5 eV | — |
— | 1.5–2 eV | — |
— | 1.5–2.5 eV | — |
— | 1.5–3 eV | — |
— | 1.5–4 eV | — |
— | 1.5–5 eV | — |
Thickness | 400–450 nm | — |
Thickness | 400–500 nm | — |
— | 2–2.8 eV | — |
Temperature | 10–300 K | — |
Thickness | 1–2 nm | — |
Thickness | 1–3 nm | — |
Thickness | 1–4 nm | — |
Thickness | 2–4 nm | — |
Thickness | 2–5 nm | — |
Thickness | 2–10 nm | — |
Thickness | 2–15 nm | — |
Thickness | 2–20 nm | — |
Pressure | 0.000001 Pa | — |
Thickness | 200–1100 nm | — |
Thickness | 200–800 nm | — |
Thickness | 800–4000 cm | — |
Thickness | 400–750 nm | — |
— | 2–2.5 eV | — |
Thickness | 400–700 nm | — |
Thickness | 200–300 nm | — |
— | 2.3–2.4 eV | — |
— | 2–2.75 eV | — |
Pressure | ≤ 1 Pa | — |
— | ≤ 0.03 eV | — |
Thickness | ≥ 1 nm | — |
Thickness | ≥ 2 nm | — |
Thickness | ≥ 3 nm | — |
Thickness | ≥ 10 nm | — |
Thickness | ≥ 5 nm | — |
Thickness | ≥ 15 nm | — |
Thickness | ≥ 20 nm | — |
Thickness | ≥ 25 nm | — |
Thickness | ≥ 4 nm | — |
Pressure | ≥ 0.000001 Pa | — |
Pressure | ≥ 0.0001 Pa | — |
Pressure | ≥ 0.01 Pa | — |
Pressure | ≥ 1 Pa | — |
Pressure | ≥ 100 Pa | — |
Pressure | ≥ 10 Pa | — |
Thickness | ≥ 50 nm | — |
Thickness | 5–300 nm | — |
graphene oxide (as-synthesized, Hummers method)
FIG. 2 shows (a) thermogravimetric thermograms for graphene oxide species, according to some embodiments; (b) FTIR spectra for graphene oxide species, …
FIG. 2 shows (a) thermogravimetric thermograms for graphene oxide species, according to some embodiments; (b) FTIR spectra for graphene oxide species, …
FIG. 6 shows X-ray photoelectron spectroscopy (XPS) data comparing carbon is spectra for suspensions comprising a graphene oxide species, according to some …
FIG. 7 shows XPS data comparing carbon i s spectra for solid compositions comprising a graphene oxide species, according to some embodiments;
FIG. 8 shows XPS data comparing oxygen i s spectra for solid compositions comprising a graphene oxide species, according to some embodiments;
FIG. 9 shows FTIR spectra for solid compositions comprising graphene oxide species, 10 according to some embodiments;
FIG. 14 shows un-normalized UV-Vis absorption spectra for suspensions comprising a graphene oxide species, according to some embodiments (left), and for solid …
FIG. 15 shows (a) Raman mapping on solid compositions comprising graphene oxide 25 species, according to some embodiments; and (b) Raman measurements on solid …
FIG. 16 shows photoluminescence spectra for thin films comprising graphene oxide species, according to some embodiments; and
FIG. 17 shows X-ray diffraction (XRD) data for a composition comprising a graphene 30 oxide species, according to some embodiments. Other aspects, embodiments …
PL Peak | ≤ 500 nm | second graphene oxide species |
Atomic Percent Oxygen | ≥ 20 at% | second graphene oxide species |
Atomic Percent Oxygen Background | 30–35 at% | graphene oxide (as-synthesized, Hummers method) |
Thickness | 350–800 nm | — |
Thickness | 1–5 nm | — |
Thickness | 1–10 nm | — |
Thickness | 1–15 nm | — |
Thickness | 1–20 nm | — |
Thickness | 1–25 nm | — |
Thickness | 1–30 nm | — |
Thickness | 5–10 nm | — |
Thickness | 5–15 nm | — |
Thickness | 5–20 nm | — |
Thickness | 5–25 nm | — |
Thickness | 5–30 nm | — |
Thickness | 10–20 nm | — |
Thickness | 10–25 nm | — |
Thickness | 10–30 nm | — |
Thickness | 15–30 nm | — |
Temperature | 30–80 °C | — |
Temperature | 30–100 °C | — |
Temperature | 30–125 °C | — |
Temperature | 30–150 °C | — |
Temperature | 40–80 °C | — |
Temperature | 40–100 °C | — |
Temperature | 40–125 °C | — |
Temperature | 40–150 °C | — |
Temperature | 50–80 °C | — |
Temperature | 50–125 °C | — |
Temperature | 50–150 °C | — |
Temperature | 60–80 °C | — |
Temperature | 60–100 °C | — |
Temperature | 60–125 °C | — |
Temperature | 60–150 °C | — |
Temperature | 70–100 °C | — |
Temperature | 70–125 °C | — |
Temperature | 70–150 °C | — |
Temperature | 80–100 °C | — |
Temperature | 80–125 °C | — |
Temperature | 80–150 °C | — |
Temperature | 100–125 °C | — |
Temperature | 100–150 °C | — |
Pressure | 1–105 Pa | — |
Pressure | 1–106 Pa | — |
Pressure | 1–109 Pa | — |
Pressure | 3–109 Pa | — |
— | 0.5–1 eV | — |
— | 0.5–1.5 eV | — |
— | 0.5–2 eV | — |
— | 0.5–2.5 eV | — |
— | 0.5–3 eV | — |
— | 0.5–4 eV | — |
— | 0.5–5 eV | — |
— | 1–1.5 eV | — |
— | 1–2.5 eV | — |
— | 1–3 eV | — |
— | 1–4 eV | — |
— | 1–5 eV | — |
— | 1.5–2 eV | — |
— | 1.5–2.5 eV | — |
— | 1.5–3 eV | — |
— | 1.5–4 eV | — |
— | 1.5–5 eV | — |
Thickness | 400–450 nm | — |
Thickness | 400–500 nm | — |
— | 2–2.8 eV | — |
Temperature | 10–300 K | — |
Thickness | 1–2 nm | — |
Thickness | 1–3 nm | — |
Thickness | 1–4 nm | — |
Thickness | 2–4 nm | — |
Thickness | 2–5 nm | — |
Thickness | 2–10 nm | — |
Thickness | 2–15 nm | — |
Thickness | 2–20 nm | — |
Pressure | 0.000001 Pa | — |
Thickness | 200–1100 nm | — |
Thickness | 200–800 nm | — |
Thickness | 800–4000 cm | — |
Thickness | 400–750 nm | — |
— | 2–2.5 eV | — |
Thickness | 400–700 nm | — |
Thickness | 200–300 nm | — |
— | 2.3–2.4 eV | — |
— | 2–2.75 eV | — |
Pressure | ≤ 1 Pa | — |
— | ≤ 0.03 eV | — |
Thickness | ≥ 1 nm | — |
Thickness | ≥ 2 nm | — |
Thickness | ≥ 3 nm | — |
Thickness | ≥ 10 nm | — |
Thickness | ≥ 5 nm | — |
Thickness | ≥ 15 nm | — |
Thickness | ≥ 20 nm | — |
Thickness | ≥ 25 nm | — |
Thickness | ≥ 4 nm | — |
Pressure | ≥ 0.000001 Pa | — |
Pressure | ≥ 0.0001 Pa | — |
Pressure | ≥ 0.01 Pa | — |
Pressure | ≥ 1 Pa | — |
Pressure | ≥ 100 Pa | — |
Pressure | ≥ 10 Pa | — |
Thickness | ≥ 50 nm | — |
Thickness | 5–300 nm | — |