Patent
US 10,418,143PERFORATABLE SHEETS OF GRAPHENE-BASED MATERIAL
Jacob L. SWETT
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 10,418,143Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a transmission electron microscope (TEM) image illustrating a graphene based material after conditioning treatment. [0017]
FIG. 2 is another transmission electron microscope image showing a graphene based material after conditioning treatment. [0042] The graphene based material was …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A membrane providing for selective permeability comprising: a sheet of graphene-based material comprising a single layer of graphene-based material wherein the layer has two opposing surfaces exposed to the environment, and the layer has been subjected to ion irradiation characterized by an ion energy ranging from 10 eV to 100 keV and a fluence ranging from 1 x10 13 ions/cm 2 to 1x10 21 ions/cm 2 producing perforations in the layer of graphene-based material; a non-graphenic carbon-based material in contact with a surface of the sheet of graphene- based material; and, contact areas between the graphene-based material and the nongraphenic carbon-based material that are greater in area that 10 % and less than 80 % of the surfaces of the sheet of graphene-based material, wherein the non-graphenic carbon-based material is characterized by substantially limited mobility; wherein the perforations in the layer of graphene-based material have a mean pore size of selected from the range of 0.3 nm to 1 p m and a density of perforations selected from the range of 2/nm 2 to 1/pm 2.
The membrane of claim 1, wherein said single layer graphene-based material has an extent of disorder characterized by long range lattice periodicity on the order of 1 micrometer.
The membrane of claim 1, wherein the perforations cover an area corresponding to 0.1 % or greater of the area of said sheet of graphene-based material.
The membrane of claim 1, wherein the perforations cover an area corresponding to 10 % or greater of the area of said sheet of graphene-based material, and wherein at least one lateral dimension of the sheet is from 10 nm to 10 cm.
The membrane of claim 1, wherein the perforations are characterized by a distribution of pores with a coefficient of variation of 0.1 to 2. 18 4814-1495-9664 1 Atty Docket No. 11423-1102
The membrane of claim 1 further comprising: graphene domains formed as nanocrystals comprising domain size from 1 to 100 nm and average size for long range order greater than or equal to 1 pm.
A sheet of graphene-based material comprising: a single layer graphene having at least two surfaces; and a non-graphenic carbon-based material provided on said single layer graphene; wherein greater than 10 % and less than 80 % of said surfaces of said single layer graphene is covered by said non-graphenic carbon-based material; and wherein said non-graphenic carbon-based material is characterized by substantially limited mobility.
A sheet of graphene-based material comprising: a single layer graphene having at least two surfaces; and a non-graphenic carbon-based material provided on said single layer graphene; wherein greater than 10% and less than 80 % of said surfaces of said single layer graphene is covered by said non-graphenic carbon-based material; and wherein said non-graphenic carbon-based material is substantially nonvolatile.
A sheet of graphene-based material comprising: a single layer graphene having at least two surfaces; and a non-graphenic carbon-based material provided on said single layer graphene; wherein greater than 10% and less than 80 % of said surfaces of said single layer graphene is covered by said non-graphenic carbon-based material; wherein exposure of said sheet of graphene-based material to ion irradiation characterized by an ion energy ranging from 10 eV to 100 keV and a fluence ranging from 1 x10 13 ions/cm 2 to 1x10 21 ions/cm 2 produces perforations in said sheet of graphene-based material.
The sheet of graphene-based material of claim 9, wherein the perforations are characterized by a density of perforations selected from the range of 2/nm 2 to 1/pm 2.
The sheet of graphene-based material of claim 9, wherein mean pore size of said perforations selected from the range of 0.3 nm to 1 pm.
The sheet of graphene-based material of claim 9, wherein the perforations are characterized by a distribution of pores with a dispersion characterized by a coefficient of variation of 0.1 to 2.
The sheet of graphene-based material of claim 9 wherein the perforations are characterized by an average area of said perforations selected from the range of 0.2 nm 2 to 0.25
A sheet of graphene-based material comprising: a single layer graphene having at least two surfaces; and a non-graphenic carbon-based material provided on said single layer graphene; wherein greater than 10% and less than 80 % of said surfaces of said single layer graphene is covered by 19 4814-1495-9664 1 Atty Docket No. 11423-1102 said non-graphenic carbon-based material; wherein upon exposure of said sheet of graphene- based material to ultraviolet radiation and an oxygen containing gas at an irradiation intensity from 10 to 100 mW/cm 2 for a time from 60 to 1200 sec produces perforations in said sheet of graphene-based material.
The sheet of graphene-based material of claim 10, wherein the perforated area corresponds to 0.1 % or greater of said area of said sheet of graphene-based material.
The sheet of graphene-based material of claim 10, wherein the perforations correspond to 10% or greater of said area of said sheet of graphene-based material and wherein at least one lateral dimension of the sheet is from 10 nm to 10 cm.
SVG 15099269.04-14-2016.IN₀SVJXUPXXIFW3.CLM.3.20.304.2399.383.2455.svg 0.187 0.263 Chemistry Black and white 17. The sheet of graphene-based material of claim 10, wherein said non-graphenic carbon- based material is in physical contact with at least one of said surfaces of said single layer graphene. 20 4814-1495-9664 1 Atty Docket No. 11423-1102
The sheet of graphene-based material of claim 10, wherein said non-graphenic carbon- based material covers 10 to 80% of said surfaces of said single layer graphene.
The sheet of graphene-based material of claim 10, wherein said non-graphenic carbon- based material does not exhibit long range order.
The sheet of graphene-based material of claim 10, wherein said non-graphenic carbon- based material has an elemental composition comprising carbon, hydrogen and oxygen.
The sheet of graphene-based material of claim 10, wherein said non-graphenic carbon- based material has a molecular composition comprising amorphous carbon, one or more hydrocarbons, oxygen containing carbon compounds, nitrogen containing carbon compounds or any combination of these.
The sheet of graphene-based material claim 10, wherein said non-graphenic carbon-based material comprises 10 % to 100 % carbon.
The sheet of graphene-based material of claims 10, wherein said non-graphenic carbon- based material further comprises non-carbon elements.
A method of conditioning a sheet of graphene-based material, the method comprising: the step of heating the sheet of graphene-based material to a temperature from 200 0 C to 800 0 C at a pressure of 10- 7 torr to atmospheric pressure for a time of 2 hours to 8 hours.
A method of conditioning a sheet of graphene-based material, the method comprising: the step of exposure to ultraviolet light and an intensity from 10 to 100 mW/cm 2 at 6mm distance for a time from 60 to 600 seconds in the presence of an oxygen containing gas. 22 4814-1495-9664 1
Layer stacks claimed or described, ordered top of device to substrate.
selectively permeable membrane (perforated graphene with non-graphenic carbon)
sheet of graphene-based material with non-graphenic carbon
Materials described outside the worked examples.
single layer graphene
C
non-graphenic carbon-based material
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1 is a transmission electron microscope (TEM) image illustrating a graphene based material after conditioning treatment. [0017]
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 10–100000000 nm | — |
Thickness |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,418,143Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a transmission electron microscope (TEM) image illustrating a graphene based material after conditioning treatment. [0017]
FIG. 2 is another transmission electron microscope image showing a graphene based material after conditioning treatment. [0042] The graphene based material was …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A membrane providing for selective permeability comprising: a sheet of graphene-based material comprising a single layer of graphene-based material wherein the layer has two opposing surfaces exposed to the environment, and the layer has been subjected to ion irradiation characterized by an ion energy ranging from 10 eV to 100 keV and a fluence ranging from 1 x10 13 ions/cm 2 to 1x10 21 ions/cm 2 producing perforations in the layer of graphene-based material; a non-graphenic carbon-based material in contact with a surface of the sheet of graphene- based material; and, contact areas between the graphene-based material and the nongraphenic carbon-based material that are greater in area that 10 % and less than 80 % of the surfaces of the sheet of graphene-based material, wherein the non-graphenic carbon-based material is characterized by substantially limited mobility; wherein the perforations in the layer of graphene-based material have a mean pore size of selected from the range of 0.3 nm to 1 p m and a density of perforations selected from the range of 2/nm 2 to 1/pm 2.
The membrane of claim 1, wherein said single layer graphene-based material has an extent of disorder characterized by long range lattice periodicity on the order of 1 micrometer.
The membrane of claim 1, wherein the perforations cover an area corresponding to 0.1 % or greater of the area of said sheet of graphene-based material.
The membrane of claim 1, wherein the perforations cover an area corresponding to 10 % or greater of the area of said sheet of graphene-based material, and wherein at least one lateral dimension of the sheet is from 10 nm to 10 cm.
The membrane of claim 1, wherein the perforations are characterized by a distribution of pores with a coefficient of variation of 0.1 to 2. 18 4814-1495-9664 1 Atty Docket No. 11423-1102
The membrane of claim 1 further comprising: graphene domains formed as nanocrystals comprising domain size from 1 to 100 nm and average size for long range order greater than or equal to 1 pm.
A sheet of graphene-based material comprising: a single layer graphene having at least two surfaces; and a non-graphenic carbon-based material provided on said single layer graphene; wherein greater than 10 % and less than 80 % of said surfaces of said single layer graphene is covered by said non-graphenic carbon-based material; and wherein said non-graphenic carbon-based material is characterized by substantially limited mobility.
A sheet of graphene-based material comprising: a single layer graphene having at least two surfaces; and a non-graphenic carbon-based material provided on said single layer graphene; wherein greater than 10% and less than 80 % of said surfaces of said single layer graphene is covered by said non-graphenic carbon-based material; and wherein said non-graphenic carbon-based material is substantially nonvolatile.
A sheet of graphene-based material comprising: a single layer graphene having at least two surfaces; and a non-graphenic carbon-based material provided on said single layer graphene; wherein greater than 10% and less than 80 % of said surfaces of said single layer graphene is covered by said non-graphenic carbon-based material; wherein exposure of said sheet of graphene-based material to ion irradiation characterized by an ion energy ranging from 10 eV to 100 keV and a fluence ranging from 1 x10 13 ions/cm 2 to 1x10 21 ions/cm 2 produces perforations in said sheet of graphene-based material.
The sheet of graphene-based material of claim 9, wherein the perforations are characterized by a density of perforations selected from the range of 2/nm 2 to 1/pm 2.
The sheet of graphene-based material of claim 9, wherein mean pore size of said perforations selected from the range of 0.3 nm to 1 pm.
The sheet of graphene-based material of claim 9, wherein the perforations are characterized by a distribution of pores with a dispersion characterized by a coefficient of variation of 0.1 to 2.
The sheet of graphene-based material of claim 9 wherein the perforations are characterized by an average area of said perforations selected from the range of 0.2 nm 2 to 0.25
A sheet of graphene-based material comprising: a single layer graphene having at least two surfaces; and a non-graphenic carbon-based material provided on said single layer graphene; wherein greater than 10% and less than 80 % of said surfaces of said single layer graphene is covered by 19 4814-1495-9664 1 Atty Docket No. 11423-1102 said non-graphenic carbon-based material; wherein upon exposure of said sheet of graphene- based material to ultraviolet radiation and an oxygen containing gas at an irradiation intensity from 10 to 100 mW/cm 2 for a time from 60 to 1200 sec produces perforations in said sheet of graphene-based material.
The sheet of graphene-based material of claim 10, wherein the perforated area corresponds to 0.1 % or greater of said area of said sheet of graphene-based material.
The sheet of graphene-based material of claim 10, wherein the perforations correspond to 10% or greater of said area of said sheet of graphene-based material and wherein at least one lateral dimension of the sheet is from 10 nm to 10 cm.
SVG 15099269.04-14-2016.IN₀SVJXUPXXIFW3.CLM.3.20.304.2399.383.2455.svg 0.187 0.263 Chemistry Black and white 17. The sheet of graphene-based material of claim 10, wherein said non-graphenic carbon- based material is in physical contact with at least one of said surfaces of said single layer graphene. 20 4814-1495-9664 1 Atty Docket No. 11423-1102
The sheet of graphene-based material of claim 10, wherein said non-graphenic carbon- based material covers 10 to 80% of said surfaces of said single layer graphene.
The sheet of graphene-based material of claim 10, wherein said non-graphenic carbon- based material does not exhibit long range order.
The sheet of graphene-based material of claim 10, wherein said non-graphenic carbon- based material has an elemental composition comprising carbon, hydrogen and oxygen.
The sheet of graphene-based material of claim 10, wherein said non-graphenic carbon- based material has a molecular composition comprising amorphous carbon, one or more hydrocarbons, oxygen containing carbon compounds, nitrogen containing carbon compounds or any combination of these.
The sheet of graphene-based material claim 10, wherein said non-graphenic carbon-based material comprises 10 % to 100 % carbon.
The sheet of graphene-based material of claims 10, wherein said non-graphenic carbon- based material further comprises non-carbon elements.
A method of conditioning a sheet of graphene-based material, the method comprising: the step of heating the sheet of graphene-based material to a temperature from 200 0 C to 800 0 C at a pressure of 10- 7 torr to atmospheric pressure for a time of 2 hours to 8 hours.
A method of conditioning a sheet of graphene-based material, the method comprising: the step of exposure to ultraviolet light and an intensity from 10 to 100 mW/cm 2 at 6mm distance for a time from 60 to 600 seconds in the presence of an oxygen containing gas. 22 4814-1495-9664 1
Layer stacks claimed or described, ordered top of device to substrate.
selectively permeable membrane (perforated graphene with non-graphenic carbon)
sheet of graphene-based material with non-graphenic carbon
Materials described outside the worked examples.
single layer graphene
C
non-graphenic carbon-based material
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1 is a transmission electron microscope (TEM) image illustrating a graphene based material after conditioning treatment. [0017]
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 10–100000000 nm | — |
Thickness |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,418,143Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a transmission electron microscope (TEM) image illustrating a graphene based material after conditioning treatment. [0017]
FIG. 2 is another transmission electron microscope image showing a graphene based material after conditioning treatment. [0042] The graphene based material was …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A membrane providing for selective permeability comprising: a sheet of graphene-based material comprising a single layer of graphene-based material wherein the layer has two opposing surfaces exposed to the environment, and the layer has been subjected to ion irradiation characterized by an ion energy ranging from 10 eV to 100 keV and a fluence ranging from 1 x10 13 ions/cm 2 to 1x10 21 ions/cm 2 producing perforations in the layer of graphene-based material; a non-graphenic carbon-based material in contact with a surface of the sheet of graphene- based material; and, contact areas between the graphene-based material and the nongraphenic carbon-based material that are greater in area that 10 % and less than 80 % of the surfaces of the sheet of graphene-based material, wherein the non-graphenic carbon-based material is characterized by substantially limited mobility; wherein the perforations in the layer of graphene-based material have a mean pore size of selected from the range of 0.3 nm to 1 p m and a density of perforations selected from the range of 2/nm 2 to 1/pm 2.
The membrane of claim 1, wherein said single layer graphene-based material has an extent of disorder characterized by long range lattice periodicity on the order of 1 micrometer.
The membrane of claim 1, wherein the perforations cover an area corresponding to 0.1 % or greater of the area of said sheet of graphene-based material.
The membrane of claim 1, wherein the perforations cover an area corresponding to 10 % or greater of the area of said sheet of graphene-based material, and wherein at least one lateral dimension of the sheet is from 10 nm to 10 cm.
The membrane of claim 1, wherein the perforations are characterized by a distribution of pores with a coefficient of variation of 0.1 to 2. 18 4814-1495-9664 1 Atty Docket No. 11423-1102
The membrane of claim 1 further comprising: graphene domains formed as nanocrystals comprising domain size from 1 to 100 nm and average size for long range order greater than or equal to 1 pm.
A sheet of graphene-based material comprising: a single layer graphene having at least two surfaces; and a non-graphenic carbon-based material provided on said single layer graphene; wherein greater than 10 % and less than 80 % of said surfaces of said single layer graphene is covered by said non-graphenic carbon-based material; and wherein said non-graphenic carbon-based material is characterized by substantially limited mobility.
A sheet of graphene-based material comprising: a single layer graphene having at least two surfaces; and a non-graphenic carbon-based material provided on said single layer graphene; wherein greater than 10% and less than 80 % of said surfaces of said single layer graphene is covered by said non-graphenic carbon-based material; and wherein said non-graphenic carbon-based material is substantially nonvolatile.
A sheet of graphene-based material comprising: a single layer graphene having at least two surfaces; and a non-graphenic carbon-based material provided on said single layer graphene; wherein greater than 10% and less than 80 % of said surfaces of said single layer graphene is covered by said non-graphenic carbon-based material; wherein exposure of said sheet of graphene-based material to ion irradiation characterized by an ion energy ranging from 10 eV to 100 keV and a fluence ranging from 1 x10 13 ions/cm 2 to 1x10 21 ions/cm 2 produces perforations in said sheet of graphene-based material.
The sheet of graphene-based material of claim 9, wherein the perforations are characterized by a density of perforations selected from the range of 2/nm 2 to 1/pm 2.
The sheet of graphene-based material of claim 9, wherein mean pore size of said perforations selected from the range of 0.3 nm to 1 pm.
The sheet of graphene-based material of claim 9, wherein the perforations are characterized by a distribution of pores with a dispersion characterized by a coefficient of variation of 0.1 to 2.
The sheet of graphene-based material of claim 9 wherein the perforations are characterized by an average area of said perforations selected from the range of 0.2 nm 2 to 0.25
A sheet of graphene-based material comprising: a single layer graphene having at least two surfaces; and a non-graphenic carbon-based material provided on said single layer graphene; wherein greater than 10% and less than 80 % of said surfaces of said single layer graphene is covered by 19 4814-1495-9664 1 Atty Docket No. 11423-1102 said non-graphenic carbon-based material; wherein upon exposure of said sheet of graphene- based material to ultraviolet radiation and an oxygen containing gas at an irradiation intensity from 10 to 100 mW/cm 2 for a time from 60 to 1200 sec produces perforations in said sheet of graphene-based material.
The sheet of graphene-based material of claim 10, wherein the perforated area corresponds to 0.1 % or greater of said area of said sheet of graphene-based material.
The sheet of graphene-based material of claim 10, wherein the perforations correspond to 10% or greater of said area of said sheet of graphene-based material and wherein at least one lateral dimension of the sheet is from 10 nm to 10 cm.
SVG 15099269.04-14-2016.IN₀SVJXUPXXIFW3.CLM.3.20.304.2399.383.2455.svg 0.187 0.263 Chemistry Black and white 17. The sheet of graphene-based material of claim 10, wherein said non-graphenic carbon- based material is in physical contact with at least one of said surfaces of said single layer graphene. 20 4814-1495-9664 1 Atty Docket No. 11423-1102
The sheet of graphene-based material of claim 10, wherein said non-graphenic carbon- based material covers 10 to 80% of said surfaces of said single layer graphene.
The sheet of graphene-based material of claim 10, wherein said non-graphenic carbon- based material does not exhibit long range order.
The sheet of graphene-based material of claim 10, wherein said non-graphenic carbon- based material has an elemental composition comprising carbon, hydrogen and oxygen.
The sheet of graphene-based material of claim 10, wherein said non-graphenic carbon- based material has a molecular composition comprising amorphous carbon, one or more hydrocarbons, oxygen containing carbon compounds, nitrogen containing carbon compounds or any combination of these.
The sheet of graphene-based material claim 10, wherein said non-graphenic carbon-based material comprises 10 % to 100 % carbon.
The sheet of graphene-based material of claims 10, wherein said non-graphenic carbon- based material further comprises non-carbon elements.
A method of conditioning a sheet of graphene-based material, the method comprising: the step of heating the sheet of graphene-based material to a temperature from 200 0 C to 800 0 C at a pressure of 10- 7 torr to atmospheric pressure for a time of 2 hours to 8 hours.
A method of conditioning a sheet of graphene-based material, the method comprising: the step of exposure to ultraviolet light and an intensity from 10 to 100 mW/cm 2 at 6mm distance for a time from 60 to 600 seconds in the presence of an oxygen containing gas. 22 4814-1495-9664 1
Layer stacks claimed or described, ordered top of device to substrate.
selectively permeable membrane (perforated graphene with non-graphenic carbon)
sheet of graphene-based material with non-graphenic carbon
Materials described outside the worked examples.
single layer graphene
C
non-graphenic carbon-based material
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1 is a transmission electron microscope (TEM) image illustrating a graphene based material after conditioning treatment. [0017]
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 10–100000000 nm | — |
Thickness |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,418,143Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a transmission electron microscope (TEM) image illustrating a graphene based material after conditioning treatment. [0017]
FIG. 2 is another transmission electron microscope image showing a graphene based material after conditioning treatment. [0042] The graphene based material was …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A membrane providing for selective permeability comprising: a sheet of graphene-based material comprising a single layer of graphene-based material wherein the layer has two opposing surfaces exposed to the environment, and the layer has been subjected to ion irradiation characterized by an ion energy ranging from 10 eV to 100 keV and a fluence ranging from 1 x10 13 ions/cm 2 to 1x10 21 ions/cm 2 producing perforations in the layer of graphene-based material; a non-graphenic carbon-based material in contact with a surface of the sheet of graphene- based material; and, contact areas between the graphene-based material and the nongraphenic carbon-based material that are greater in area that 10 % and less than 80 % of the surfaces of the sheet of graphene-based material, wherein the non-graphenic carbon-based material is characterized by substantially limited mobility; wherein the perforations in the layer of graphene-based material have a mean pore size of selected from the range of 0.3 nm to 1 p m and a density of perforations selected from the range of 2/nm 2 to 1/pm 2.
The membrane of claim 1, wherein said single layer graphene-based material has an extent of disorder characterized by long range lattice periodicity on the order of 1 micrometer.
The membrane of claim 1, wherein the perforations cover an area corresponding to 0.1 % or greater of the area of said sheet of graphene-based material.
The membrane of claim 1, wherein the perforations cover an area corresponding to 10 % or greater of the area of said sheet of graphene-based material, and wherein at least one lateral dimension of the sheet is from 10 nm to 10 cm.
The membrane of claim 1, wherein the perforations are characterized by a distribution of pores with a coefficient of variation of 0.1 to 2. 18 4814-1495-9664 1 Atty Docket No. 11423-1102
The membrane of claim 1 further comprising: graphene domains formed as nanocrystals comprising domain size from 1 to 100 nm and average size for long range order greater than or equal to 1 pm.
A sheet of graphene-based material comprising: a single layer graphene having at least two surfaces; and a non-graphenic carbon-based material provided on said single layer graphene; wherein greater than 10 % and less than 80 % of said surfaces of said single layer graphene is covered by said non-graphenic carbon-based material; and wherein said non-graphenic carbon-based material is characterized by substantially limited mobility.
A sheet of graphene-based material comprising: a single layer graphene having at least two surfaces; and a non-graphenic carbon-based material provided on said single layer graphene; wherein greater than 10% and less than 80 % of said surfaces of said single layer graphene is covered by said non-graphenic carbon-based material; and wherein said non-graphenic carbon-based material is substantially nonvolatile.
A sheet of graphene-based material comprising: a single layer graphene having at least two surfaces; and a non-graphenic carbon-based material provided on said single layer graphene; wherein greater than 10% and less than 80 % of said surfaces of said single layer graphene is covered by said non-graphenic carbon-based material; wherein exposure of said sheet of graphene-based material to ion irradiation characterized by an ion energy ranging from 10 eV to 100 keV and a fluence ranging from 1 x10 13 ions/cm 2 to 1x10 21 ions/cm 2 produces perforations in said sheet of graphene-based material.
The sheet of graphene-based material of claim 9, wherein the perforations are characterized by a density of perforations selected from the range of 2/nm 2 to 1/pm 2.
The sheet of graphene-based material of claim 9, wherein mean pore size of said perforations selected from the range of 0.3 nm to 1 pm.
The sheet of graphene-based material of claim 9, wherein the perforations are characterized by a distribution of pores with a dispersion characterized by a coefficient of variation of 0.1 to 2.
The sheet of graphene-based material of claim 9 wherein the perforations are characterized by an average area of said perforations selected from the range of 0.2 nm 2 to 0.25
A sheet of graphene-based material comprising: a single layer graphene having at least two surfaces; and a non-graphenic carbon-based material provided on said single layer graphene; wherein greater than 10% and less than 80 % of said surfaces of said single layer graphene is covered by 19 4814-1495-9664 1 Atty Docket No. 11423-1102 said non-graphenic carbon-based material; wherein upon exposure of said sheet of graphene- based material to ultraviolet radiation and an oxygen containing gas at an irradiation intensity from 10 to 100 mW/cm 2 for a time from 60 to 1200 sec produces perforations in said sheet of graphene-based material.
The sheet of graphene-based material of claim 10, wherein the perforated area corresponds to 0.1 % or greater of said area of said sheet of graphene-based material.
The sheet of graphene-based material of claim 10, wherein the perforations correspond to 10% or greater of said area of said sheet of graphene-based material and wherein at least one lateral dimension of the sheet is from 10 nm to 10 cm.
SVG 15099269.04-14-2016.IN₀SVJXUPXXIFW3.CLM.3.20.304.2399.383.2455.svg 0.187 0.263 Chemistry Black and white 17. The sheet of graphene-based material of claim 10, wherein said non-graphenic carbon- based material is in physical contact with at least one of said surfaces of said single layer graphene. 20 4814-1495-9664 1 Atty Docket No. 11423-1102
The sheet of graphene-based material of claim 10, wherein said non-graphenic carbon- based material covers 10 to 80% of said surfaces of said single layer graphene.
The sheet of graphene-based material of claim 10, wherein said non-graphenic carbon- based material does not exhibit long range order.
The sheet of graphene-based material of claim 10, wherein said non-graphenic carbon- based material has an elemental composition comprising carbon, hydrogen and oxygen.
The sheet of graphene-based material of claim 10, wherein said non-graphenic carbon- based material has a molecular composition comprising amorphous carbon, one or more hydrocarbons, oxygen containing carbon compounds, nitrogen containing carbon compounds or any combination of these.
The sheet of graphene-based material claim 10, wherein said non-graphenic carbon-based material comprises 10 % to 100 % carbon.
The sheet of graphene-based material of claims 10, wherein said non-graphenic carbon- based material further comprises non-carbon elements.
A method of conditioning a sheet of graphene-based material, the method comprising: the step of heating the sheet of graphene-based material to a temperature from 200 0 C to 800 0 C at a pressure of 10- 7 torr to atmospheric pressure for a time of 2 hours to 8 hours.
A method of conditioning a sheet of graphene-based material, the method comprising: the step of exposure to ultraviolet light and an intensity from 10 to 100 mW/cm 2 at 6mm distance for a time from 60 to 600 seconds in the presence of an oxygen containing gas. 22 4814-1495-9664 1
Layer stacks claimed or described, ordered top of device to substrate.
selectively permeable membrane (perforated graphene with non-graphenic carbon)
sheet of graphene-based material with non-graphenic carbon
Materials described outside the worked examples.
single layer graphene
C
non-graphenic carbon-based material
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1 is a transmission electron microscope (TEM) image illustrating a graphene based material after conditioning treatment. [0017]
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 10–100000000 nm | — |
Thickness |
Related documents with shared materials, methods, properties, or citations.
FIG. 2 is another transmission electron microscope image showing a graphene based material after conditioning treatment. [0042] The graphene based material was …
| 0.3–10 nm |
| — |
Duration | 2–8 hours | — |
Thickness | 1–100 nm | — |
Duration | 60–1200 sec | — |
Duration | 60–600 seconds | — |
Pressure | 1e-7 torr | — |
Thickness | ≥ 1 cm | — |
FIG. 2 is another transmission electron microscope image showing a graphene based material after conditioning treatment. [0042] The graphene based material was …
| 0.3–10 nm |
| — |
Duration | 2–8 hours | — |
Thickness | 1–100 nm | — |
Duration | 60–1200 sec | — |
Duration | 60–600 seconds | — |
Pressure | 1e-7 torr | — |
Thickness | ≥ 1 cm | — |
FIG. 2 is another transmission electron microscope image showing a graphene based material after conditioning treatment. [0042] The graphene based material was …
| 0.3–10 nm |
| — |
Duration | 2–8 hours | — |
Thickness | 1–100 nm | — |
Duration | 60–1200 sec | — |
Duration | 60–600 seconds | — |
Pressure | 1e-7 torr | — |
Thickness | ≥ 1 cm | — |
FIG. 2 is another transmission electron microscope image showing a graphene based material after conditioning treatment. [0042] The graphene based material was …
| 0.3–10 nm |
| — |
Duration | 2–8 hours | — |
Thickness | 1–100 nm | — |
Duration | 60–1200 sec | — |
Duration | 60–600 seconds | — |
Pressure | 1e-7 torr | — |
Thickness | ≥ 1 cm | — |