Patent
US 8,906,245Material Trivial Transfer Graphene
Richard S. Ploss Jr.
US
Copyright © 2026 Matter42. All rights reserved.
Patent details
Patent
US 8,906,245Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a flow chart showing the process for preparing a PMMA-coated graphene on a polymer.
FIG. 2 is a cross sectional view of CVD graphene on a source substrate.
FIG.3, the method and process for preparing the initial graphene transfer product comprises the following steps: Step 1: Remove the Chemical Vapor Deposition …
FIG. 4 is a flow chart showing the process for transferring the PMMA-coated graphene to a target substrate.
FIG. 5 is a cross-sectional view of a PMMA-coated CVD graphene on a target substrate. DETAIL DESCRIPTIONS OF THE INVENTION 20 All illustrations of the drawings …
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 transferring a poly(methyl methacrylate)-coated (PMMA-coated) graphene from a source substrate to a target substrate, comprising 5 cutting said source substrate, wherein said source substrate has been coated with CVD graphene, into pieces; spin-coating a layer of PMMA on surfaces of said CVD graphene; etching away said source substrate from said PMMA-coated CVD graphene with an etching solution; 10 floating said PMMA-coated CVD graphene free from said source substrate in said etching solution; placing said PMMA-coated CVD graphene into deionized (DI) water; rinsing said PMMA-coated CVD graphene to wash away said etching solution; in response of the step of rinsing, coating said PMMA-coated CVD graphene 15 onto a polymer; drying said polymer, wherein said polymer has been coated with said PMMA- coated CVD graphene; and obtaining said polymer which has been coated with said PMMA-coated CVD graphene.
The method for transferring a PMMA-coated graphene from a source substrate to a target substrate of claim 1, comprising said source substrate is a copper foil substrate; and said etching solution is CuSO4:HC l:H₂ O=10 g:50m l:50m l.
The method for transferring a PMMA-coated graphene from a source substrate to a target substrate of claim 1, comprising said polymer is a sponge.
A method for transferring a PMMA-coated graphene from a source substrate to a target substrate, comprising preparing a polymer, wherein said polymer has been coated with said PMMA- coated CVD graphene; 5 placing said polymer which has been coated with said PMMA-coated CVD graphene, into DI water; peeling off said PMMA-coated CVD graphene from said polymer; floating said PMMA-coated CVD graphene on said DI water; cutting said target substrate at a pre-determined size; 10 cleaning said target substrate; scooping up said floating PMMA-coated CVD graphene with said target substrate; and obtaining said target substrate, wherein said target substrate has been coated with said PMMA-coated CVD graphene.
The method for transferring a PMMA-coated graphene from a source substrate to a target substrate of claim 10, comprising cutting said source substrate, wherein said source substrate has been coated with CVD graphene, into pieces; 20 spin-coating a layer of PMMA on surfaces of said CVD graphene; etching away said source substrate from said PMMA-coated CVD graphene with an etching solution; floating said PMMA-coated CVD graphene free from said source substrate in said etching solution; 25 placing said PMMA-coated CVD graphene into DI water; rinsing said PMMA-coated CVD graphene to wash away said etching solution; after the step of rinsing, coating said PMMA-coated CVD graphene onto a polymer; drying said polymer, wherein said polymer has been coated with said PMMA- 30 coated CVD graphene; and 9 obtaining said polymer which has been coated with said PMMA-coated CVD graphene.
Materials described outside the worked examples.
CVD graphene
poly(methyl methacrylate)
Additional fabrication and treatment steps described in the patent.
Related documents with shared materials, methods, properties, or citations.
Patent details
Patent
US 8,906,245Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a flow chart showing the process for preparing a PMMA-coated graphene on a polymer.
FIG. 2 is a cross sectional view of CVD graphene on a source substrate.
FIG.3, the method and process for preparing the initial graphene transfer product comprises the following steps: Step 1: Remove the Chemical Vapor Deposition …
FIG. 4 is a flow chart showing the process for transferring the PMMA-coated graphene to a target substrate.
FIG. 5 is a cross-sectional view of a PMMA-coated CVD graphene on a target substrate. DETAIL DESCRIPTIONS OF THE INVENTION 20 All illustrations of the drawings …
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 transferring a poly(methyl methacrylate)-coated (PMMA-coated) graphene from a source substrate to a target substrate, comprising 5 cutting said source substrate, wherein said source substrate has been coated with CVD graphene, into pieces; spin-coating a layer of PMMA on surfaces of said CVD graphene; etching away said source substrate from said PMMA-coated CVD graphene with an etching solution; 10 floating said PMMA-coated CVD graphene free from said source substrate in said etching solution; placing said PMMA-coated CVD graphene into deionized (DI) water; rinsing said PMMA-coated CVD graphene to wash away said etching solution; in response of the step of rinsing, coating said PMMA-coated CVD graphene 15 onto a polymer; drying said polymer, wherein said polymer has been coated with said PMMA- coated CVD graphene; and obtaining said polymer which has been coated with said PMMA-coated CVD graphene.
The method for transferring a PMMA-coated graphene from a source substrate to a target substrate of claim 1, comprising said source substrate is a copper foil substrate; and said etching solution is CuSO4:HC l:H₂ O=10 g:50m l:50m l.
The method for transferring a PMMA-coated graphene from a source substrate to a target substrate of claim 1, comprising said polymer is a sponge.
A method for transferring a PMMA-coated graphene from a source substrate to a target substrate, comprising preparing a polymer, wherein said polymer has been coated with said PMMA- coated CVD graphene; 5 placing said polymer which has been coated with said PMMA-coated CVD graphene, into DI water; peeling off said PMMA-coated CVD graphene from said polymer; floating said PMMA-coated CVD graphene on said DI water; cutting said target substrate at a pre-determined size; 10 cleaning said target substrate; scooping up said floating PMMA-coated CVD graphene with said target substrate; and obtaining said target substrate, wherein said target substrate has been coated with said PMMA-coated CVD graphene.
The method for transferring a PMMA-coated graphene from a source substrate to a target substrate of claim 10, comprising cutting said source substrate, wherein said source substrate has been coated with CVD graphene, into pieces; 20 spin-coating a layer of PMMA on surfaces of said CVD graphene; etching away said source substrate from said PMMA-coated CVD graphene with an etching solution; floating said PMMA-coated CVD graphene free from said source substrate in said etching solution; 25 placing said PMMA-coated CVD graphene into DI water; rinsing said PMMA-coated CVD graphene to wash away said etching solution; after the step of rinsing, coating said PMMA-coated CVD graphene onto a polymer; drying said polymer, wherein said polymer has been coated with said PMMA- 30 coated CVD graphene; and 9 obtaining said polymer which has been coated with said PMMA-coated CVD graphene.
Materials described outside the worked examples.
CVD graphene
poly(methyl methacrylate)
Additional fabrication and treatment steps described in the patent.
Related documents with shared materials, methods, properties, or citations.
Patent details
Patent
US 8,906,245Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a flow chart showing the process for preparing a PMMA-coated graphene on a polymer.
FIG. 2 is a cross sectional view of CVD graphene on a source substrate.
FIG.3, the method and process for preparing the initial graphene transfer product comprises the following steps: Step 1: Remove the Chemical Vapor Deposition …
FIG. 4 is a flow chart showing the process for transferring the PMMA-coated graphene to a target substrate.
FIG. 5 is a cross-sectional view of a PMMA-coated CVD graphene on a target substrate. DETAIL DESCRIPTIONS OF THE INVENTION 20 All illustrations of the drawings …
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 transferring a poly(methyl methacrylate)-coated (PMMA-coated) graphene from a source substrate to a target substrate, comprising 5 cutting said source substrate, wherein said source substrate has been coated with CVD graphene, into pieces; spin-coating a layer of PMMA on surfaces of said CVD graphene; etching away said source substrate from said PMMA-coated CVD graphene with an etching solution; 10 floating said PMMA-coated CVD graphene free from said source substrate in said etching solution; placing said PMMA-coated CVD graphene into deionized (DI) water; rinsing said PMMA-coated CVD graphene to wash away said etching solution; in response of the step of rinsing, coating said PMMA-coated CVD graphene 15 onto a polymer; drying said polymer, wherein said polymer has been coated with said PMMA- coated CVD graphene; and obtaining said polymer which has been coated with said PMMA-coated CVD graphene.
The method for transferring a PMMA-coated graphene from a source substrate to a target substrate of claim 1, comprising said source substrate is a copper foil substrate; and said etching solution is CuSO4:HC l:H₂ O=10 g:50m l:50m l.
The method for transferring a PMMA-coated graphene from a source substrate to a target substrate of claim 1, comprising said polymer is a sponge.
A method for transferring a PMMA-coated graphene from a source substrate to a target substrate, comprising preparing a polymer, wherein said polymer has been coated with said PMMA- coated CVD graphene; 5 placing said polymer which has been coated with said PMMA-coated CVD graphene, into DI water; peeling off said PMMA-coated CVD graphene from said polymer; floating said PMMA-coated CVD graphene on said DI water; cutting said target substrate at a pre-determined size; 10 cleaning said target substrate; scooping up said floating PMMA-coated CVD graphene with said target substrate; and obtaining said target substrate, wherein said target substrate has been coated with said PMMA-coated CVD graphene.
The method for transferring a PMMA-coated graphene from a source substrate to a target substrate of claim 10, comprising cutting said source substrate, wherein said source substrate has been coated with CVD graphene, into pieces; 20 spin-coating a layer of PMMA on surfaces of said CVD graphene; etching away said source substrate from said PMMA-coated CVD graphene with an etching solution; floating said PMMA-coated CVD graphene free from said source substrate in said etching solution; 25 placing said PMMA-coated CVD graphene into DI water; rinsing said PMMA-coated CVD graphene to wash away said etching solution; after the step of rinsing, coating said PMMA-coated CVD graphene onto a polymer; drying said polymer, wherein said polymer has been coated with said PMMA- 30 coated CVD graphene; and 9 obtaining said polymer which has been coated with said PMMA-coated CVD graphene.
Materials described outside the worked examples.
CVD graphene
poly(methyl methacrylate)
Additional fabrication and treatment steps described in the patent.
Related documents with shared materials, methods, properties, or citations.
Patent details
Patent
US 8,906,245Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a flow chart showing the process for preparing a PMMA-coated graphene on a polymer.
FIG. 2 is a cross sectional view of CVD graphene on a source substrate.
FIG.3, the method and process for preparing the initial graphene transfer product comprises the following steps: Step 1: Remove the Chemical Vapor Deposition …
FIG. 4 is a flow chart showing the process for transferring the PMMA-coated graphene to a target substrate.
FIG. 5 is a cross-sectional view of a PMMA-coated CVD graphene on a target substrate. DETAIL DESCRIPTIONS OF THE INVENTION 20 All illustrations of the drawings …
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 transferring a poly(methyl methacrylate)-coated (PMMA-coated) graphene from a source substrate to a target substrate, comprising 5 cutting said source substrate, wherein said source substrate has been coated with CVD graphene, into pieces; spin-coating a layer of PMMA on surfaces of said CVD graphene; etching away said source substrate from said PMMA-coated CVD graphene with an etching solution; 10 floating said PMMA-coated CVD graphene free from said source substrate in said etching solution; placing said PMMA-coated CVD graphene into deionized (DI) water; rinsing said PMMA-coated CVD graphene to wash away said etching solution; in response of the step of rinsing, coating said PMMA-coated CVD graphene 15 onto a polymer; drying said polymer, wherein said polymer has been coated with said PMMA- coated CVD graphene; and obtaining said polymer which has been coated with said PMMA-coated CVD graphene.
The method for transferring a PMMA-coated graphene from a source substrate to a target substrate of claim 1, comprising said source substrate is a copper foil substrate; and said etching solution is CuSO4:HC l:H₂ O=10 g:50m l:50m l.
The method for transferring a PMMA-coated graphene from a source substrate to a target substrate of claim 1, comprising said polymer is a sponge.
A method for transferring a PMMA-coated graphene from a source substrate to a target substrate, comprising preparing a polymer, wherein said polymer has been coated with said PMMA- coated CVD graphene; 5 placing said polymer which has been coated with said PMMA-coated CVD graphene, into DI water; peeling off said PMMA-coated CVD graphene from said polymer; floating said PMMA-coated CVD graphene on said DI water; cutting said target substrate at a pre-determined size; 10 cleaning said target substrate; scooping up said floating PMMA-coated CVD graphene with said target substrate; and obtaining said target substrate, wherein said target substrate has been coated with said PMMA-coated CVD graphene.
The method for transferring a PMMA-coated graphene from a source substrate to a target substrate of claim 10, comprising cutting said source substrate, wherein said source substrate has been coated with CVD graphene, into pieces; 20 spin-coating a layer of PMMA on surfaces of said CVD graphene; etching away said source substrate from said PMMA-coated CVD graphene with an etching solution; floating said PMMA-coated CVD graphene free from said source substrate in said etching solution; 25 placing said PMMA-coated CVD graphene into DI water; rinsing said PMMA-coated CVD graphene to wash away said etching solution; after the step of rinsing, coating said PMMA-coated CVD graphene onto a polymer; drying said polymer, wherein said polymer has been coated with said PMMA- 30 coated CVD graphene; and 9 obtaining said polymer which has been coated with said PMMA-coated CVD graphene.
Materials described outside the worked examples.
CVD graphene
poly(methyl methacrylate)
Additional fabrication and treatment steps described in the patent.
Related documents with shared materials, methods, properties, or citations.
H₂O
polymer
copper foil substrate
Cu
etching solution CuSO4:HCl:H₂O
sponge
nano-scale sponge
single-layer CVD graphene
multi-layer CVD graphene
doped graphene
H₂O
polymer
copper foil substrate
Cu
etching solution CuSO4:HCl:H₂O
sponge
nano-scale sponge
single-layer CVD graphene
multi-layer CVD graphene
doped graphene
H₂O
polymer
copper foil substrate
Cu
etching solution CuSO4:HCl:H₂O
sponge
nano-scale sponge
single-layer CVD graphene
multi-layer CVD graphene
doped graphene
H₂O
polymer
copper foil substrate
Cu
etching solution CuSO4:HCl:H₂O
sponge
nano-scale sponge
single-layer CVD graphene
multi-layer CVD graphene
doped graphene