Patent
US 10,392,248DRY GRAPHENE TRANSFER FROM METAL FOILS
Evgeniya H. Lock
US
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Patent
Atlas literature
Patent
US 10,392,248Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. In the first step, graphene was grown via CVD on a Cu foil and separately, the polymer surface was treated to enhance its adhesion to graphene. The …
FIG. 2, Tables II, III). SVG 16018682.06-26-2018.JIW₂JVGPRXEAPX5.SPEC.7.10.301.1087.2224.1585.svg 1.66 6.41 Chemistry Black and white [0022] A closer look in …
FIG. 3 shows XPS survey spectra of every step of the polymer preparation before print and the corresponding spectra after print. [0010]
FIG. 4 is an attachment schematic: a) hydrogen bond attachment between the amine groups of the TFPA and the hydroxyls and carboxyl groups of the plasma treated …
FIG. 5) also confirm the transfer for PS ref and PE ref. XPS analysis of the Cu foil before and after print to both polymer substrates (Table IV) show an …
FIG. 6 shows Raman spectra of D, G and 2D regions of polystyrene (a-c) and polyethylene (d-f) before and after print. [0013]
FIG. 7 shows (a) microraman maps of PS H, PS R and PS Ref after print, (b) the corresponding raman spectra at chosen points of each map, and 9 (c) optical …
FIG. 8 shows sheet resistance of polystyrene and polyethylene before and after print. DETAILED DESCRIPTION OF THE I NVENTION [0015] The present invention is …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method for dry graphene transfer comprising: growing graphene on a growth substrate; applying an electron beam generated C O 2 plasma to chemically modify a transfer substrate to enhance its adhesion to graphene; depositing N-ethylamino-4-azidotetrafluorobenzoate (TFPA) with an NH₂ end group to the chemically modified transfer substrate, wherein the NH₂ end group attaches to the chemically modified transfer substrate leaving an azide end-group available to attach to the graphene, wherein said deposition comprises: placing the chemically modified transfer substrate in a 4 mM TFPA solution for two hours; rinsing the chemically modified transfer substrate after removal from the TFPA solution; and sonicating for 10 minutes in methanol the rinsed chemically modified transfer substrate; contacting the graphene on the growth substrate with the azide end-group on the rinsed chemically modified transfer substrate and transfer printing; and separating the transfer substrate with attached graphene from the growth substrate.
The method of claim 1, wherein the growth substrate comprises copper foil.
The method of claim 1, when the growth substrate comprises a transition metal foil.
The method of claim 1, wherein the growth substrate comprises silicon carbide or boron nitride.
The method of claim 1, wherein the transfer substrate comprises a polymer.
The method of claim 1, wherein the transfer substrate comprises a homopolymer.
The method of claim 1 wherein the transfer substrate comprises polystyrene, polyethylene, polypropylene, or any combination thereof.
The method of claim 1, wherein the transfer substrate comprises an oxygen containing polymer, a nitrogen containing polymer, or both.
The method of claim 2, wherein the plasma incorporates hydroxyls, carbonyls, carboxyls, and carbonates into the transfer substrate.
Materials described outside the worked examples.
graphene
N-ethylamino-4-azidotetrafluorobenzoate (TFPA)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Pressure | 0.000001 Torr | — |
Temperature | ≥ 140 °C |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,392,248Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. In the first step, graphene was grown via CVD on a Cu foil and separately, the polymer surface was treated to enhance its adhesion to graphene. The …
FIG. 2, Tables II, III). SVG 16018682.06-26-2018.JIW₂JVGPRXEAPX5.SPEC.7.10.301.1087.2224.1585.svg 1.66 6.41 Chemistry Black and white [0022] A closer look in …
FIG. 3 shows XPS survey spectra of every step of the polymer preparation before print and the corresponding spectra after print. [0010]
FIG. 4 is an attachment schematic: a) hydrogen bond attachment between the amine groups of the TFPA and the hydroxyls and carboxyl groups of the plasma treated …
FIG. 5) also confirm the transfer for PS ref and PE ref. XPS analysis of the Cu foil before and after print to both polymer substrates (Table IV) show an …
FIG. 6 shows Raman spectra of D, G and 2D regions of polystyrene (a-c) and polyethylene (d-f) before and after print. [0013]
FIG. 7 shows (a) microraman maps of PS H, PS R and PS Ref after print, (b) the corresponding raman spectra at chosen points of each map, and 9 (c) optical …
FIG. 8 shows sheet resistance of polystyrene and polyethylene before and after print. DETAILED DESCRIPTION OF THE I NVENTION [0015] The present invention is …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method for dry graphene transfer comprising: growing graphene on a growth substrate; applying an electron beam generated C O 2 plasma to chemically modify a transfer substrate to enhance its adhesion to graphene; depositing N-ethylamino-4-azidotetrafluorobenzoate (TFPA) with an NH₂ end group to the chemically modified transfer substrate, wherein the NH₂ end group attaches to the chemically modified transfer substrate leaving an azide end-group available to attach to the graphene, wherein said deposition comprises: placing the chemically modified transfer substrate in a 4 mM TFPA solution for two hours; rinsing the chemically modified transfer substrate after removal from the TFPA solution; and sonicating for 10 minutes in methanol the rinsed chemically modified transfer substrate; contacting the graphene on the growth substrate with the azide end-group on the rinsed chemically modified transfer substrate and transfer printing; and separating the transfer substrate with attached graphene from the growth substrate.
The method of claim 1, wherein the growth substrate comprises copper foil.
The method of claim 1, when the growth substrate comprises a transition metal foil.
The method of claim 1, wherein the growth substrate comprises silicon carbide or boron nitride.
The method of claim 1, wherein the transfer substrate comprises a polymer.
The method of claim 1, wherein the transfer substrate comprises a homopolymer.
The method of claim 1 wherein the transfer substrate comprises polystyrene, polyethylene, polypropylene, or any combination thereof.
The method of claim 1, wherein the transfer substrate comprises an oxygen containing polymer, a nitrogen containing polymer, or both.
The method of claim 2, wherein the plasma incorporates hydroxyls, carbonyls, carboxyls, and carbonates into the transfer substrate.
Materials described outside the worked examples.
graphene
N-ethylamino-4-azidotetrafluorobenzoate (TFPA)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Pressure | 0.000001 Torr | — |
Temperature | ≥ 140 °C |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,392,248Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. In the first step, graphene was grown via CVD on a Cu foil and separately, the polymer surface was treated to enhance its adhesion to graphene. The …
FIG. 2, Tables II, III). SVG 16018682.06-26-2018.JIW₂JVGPRXEAPX5.SPEC.7.10.301.1087.2224.1585.svg 1.66 6.41 Chemistry Black and white [0022] A closer look in …
FIG. 3 shows XPS survey spectra of every step of the polymer preparation before print and the corresponding spectra after print. [0010]
FIG. 4 is an attachment schematic: a) hydrogen bond attachment between the amine groups of the TFPA and the hydroxyls and carboxyl groups of the plasma treated …
FIG. 5) also confirm the transfer for PS ref and PE ref. XPS analysis of the Cu foil before and after print to both polymer substrates (Table IV) show an …
FIG. 6 shows Raman spectra of D, G and 2D regions of polystyrene (a-c) and polyethylene (d-f) before and after print. [0013]
FIG. 7 shows (a) microraman maps of PS H, PS R and PS Ref after print, (b) the corresponding raman spectra at chosen points of each map, and 9 (c) optical …
FIG. 8 shows sheet resistance of polystyrene and polyethylene before and after print. DETAILED DESCRIPTION OF THE I NVENTION [0015] The present invention is …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method for dry graphene transfer comprising: growing graphene on a growth substrate; applying an electron beam generated C O 2 plasma to chemically modify a transfer substrate to enhance its adhesion to graphene; depositing N-ethylamino-4-azidotetrafluorobenzoate (TFPA) with an NH₂ end group to the chemically modified transfer substrate, wherein the NH₂ end group attaches to the chemically modified transfer substrate leaving an azide end-group available to attach to the graphene, wherein said deposition comprises: placing the chemically modified transfer substrate in a 4 mM TFPA solution for two hours; rinsing the chemically modified transfer substrate after removal from the TFPA solution; and sonicating for 10 minutes in methanol the rinsed chemically modified transfer substrate; contacting the graphene on the growth substrate with the azide end-group on the rinsed chemically modified transfer substrate and transfer printing; and separating the transfer substrate with attached graphene from the growth substrate.
The method of claim 1, wherein the growth substrate comprises copper foil.
The method of claim 1, when the growth substrate comprises a transition metal foil.
The method of claim 1, wherein the growth substrate comprises silicon carbide or boron nitride.
The method of claim 1, wherein the transfer substrate comprises a polymer.
The method of claim 1, wherein the transfer substrate comprises a homopolymer.
The method of claim 1 wherein the transfer substrate comprises polystyrene, polyethylene, polypropylene, or any combination thereof.
The method of claim 1, wherein the transfer substrate comprises an oxygen containing polymer, a nitrogen containing polymer, or both.
The method of claim 2, wherein the plasma incorporates hydroxyls, carbonyls, carboxyls, and carbonates into the transfer substrate.
Materials described outside the worked examples.
graphene
N-ethylamino-4-azidotetrafluorobenzoate (TFPA)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Pressure | 0.000001 Torr | — |
Temperature | ≥ 140 °C |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,392,248Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. In the first step, graphene was grown via CVD on a Cu foil and separately, the polymer surface was treated to enhance its adhesion to graphene. The …
FIG. 2, Tables II, III). SVG 16018682.06-26-2018.JIW₂JVGPRXEAPX5.SPEC.7.10.301.1087.2224.1585.svg 1.66 6.41 Chemistry Black and white [0022] A closer look in …
FIG. 3 shows XPS survey spectra of every step of the polymer preparation before print and the corresponding spectra after print. [0010]
FIG. 4 is an attachment schematic: a) hydrogen bond attachment between the amine groups of the TFPA and the hydroxyls and carboxyl groups of the plasma treated …
FIG. 5) also confirm the transfer for PS ref and PE ref. XPS analysis of the Cu foil before and after print to both polymer substrates (Table IV) show an …
FIG. 6 shows Raman spectra of D, G and 2D regions of polystyrene (a-c) and polyethylene (d-f) before and after print. [0013]
FIG. 7 shows (a) microraman maps of PS H, PS R and PS Ref after print, (b) the corresponding raman spectra at chosen points of each map, and 9 (c) optical …
FIG. 8 shows sheet resistance of polystyrene and polyethylene before and after print. DETAILED DESCRIPTION OF THE I NVENTION [0015] The present invention is …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method for dry graphene transfer comprising: growing graphene on a growth substrate; applying an electron beam generated C O 2 plasma to chemically modify a transfer substrate to enhance its adhesion to graphene; depositing N-ethylamino-4-azidotetrafluorobenzoate (TFPA) with an NH₂ end group to the chemically modified transfer substrate, wherein the NH₂ end group attaches to the chemically modified transfer substrate leaving an azide end-group available to attach to the graphene, wherein said deposition comprises: placing the chemically modified transfer substrate in a 4 mM TFPA solution for two hours; rinsing the chemically modified transfer substrate after removal from the TFPA solution; and sonicating for 10 minutes in methanol the rinsed chemically modified transfer substrate; contacting the graphene on the growth substrate with the azide end-group on the rinsed chemically modified transfer substrate and transfer printing; and separating the transfer substrate with attached graphene from the growth substrate.
The method of claim 1, wherein the growth substrate comprises copper foil.
The method of claim 1, when the growth substrate comprises a transition metal foil.
The method of claim 1, wherein the growth substrate comprises silicon carbide or boron nitride.
The method of claim 1, wherein the transfer substrate comprises a polymer.
The method of claim 1, wherein the transfer substrate comprises a homopolymer.
The method of claim 1 wherein the transfer substrate comprises polystyrene, polyethylene, polypropylene, or any combination thereof.
The method of claim 1, wherein the transfer substrate comprises an oxygen containing polymer, a nitrogen containing polymer, or both.
The method of claim 2, wherein the plasma incorporates hydroxyls, carbonyls, carboxyls, and carbonates into the transfer substrate.
Materials described outside the worked examples.
graphene
N-ethylamino-4-azidotetrafluorobenzoate (TFPA)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Pressure | 0.000001 Torr | — |
Temperature | ≥ 140 °C |
Related documents with shared materials, methods, properties, or citations.
methanol
CH₃OH
copper foil
Cu
transition metal foil
ruthenium
Ru
iridium
Ir
nickel
Ni
silicon carbide
SiC
boron nitride
BN
polymer
homopolymer
polystyrene
polyethylene
polypropylene
oxygen containing polymer or nitrogen containing polymer
TFPA-NH₂ linker molecule
| — |
methanol
CH₃OH
copper foil
Cu
transition metal foil
ruthenium
Ru
iridium
Ir
nickel
Ni
silicon carbide
SiC
boron nitride
BN
polymer
homopolymer
polystyrene
polyethylene
polypropylene
oxygen containing polymer or nitrogen containing polymer
TFPA-NH₂ linker molecule
| — |
methanol
CH₃OH
copper foil
Cu
transition metal foil
ruthenium
Ru
iridium
Ir
nickel
Ni
silicon carbide
SiC
boron nitride
BN
polymer
homopolymer
polystyrene
polyethylene
polypropylene
oxygen containing polymer or nitrogen containing polymer
TFPA-NH₂ linker molecule
| — |
methanol
CH₃OH
copper foil
Cu
transition metal foil
ruthenium
Ru
iridium
Ir
nickel
Ni
silicon carbide
SiC
boron nitride
BN
polymer
homopolymer
polystyrene
polyethylene
polypropylene
oxygen containing polymer or nitrogen containing polymer
TFPA-NH₂ linker molecule
| — |