Graphene tape

Patent metadata

Field	Value
Publication number	US-2016304352-A1
Application number	US-201415101121-A
Country	US
Kind code	A1
Filing date	Dec 5, 2014
Priority date	Dec 5, 2013
Publication date	Oct 20, 2016
Grant date	—

Abstract

The invention relates to a graphene tape. In particular, it relates to the manufacture, the application and possible uses of such a graphene tape. A graphene tape comprising (a) a support layer; and (b) a first nano-composite layer, the nanocomposite layer comprising a thin film layer and a graphene layer, wherein the thin film layer is disposed between the support layer and the graphene layer. A method of manufacture comprising (a) providing a substrate; (b) forming a graphene layer on the substrate; (c) depositing a thin film layer on the graphene layer; (d) applying a supporting layer on the thin film layer; (e) removing the substrate; and (f) applying a protective layer in place of the substrate.

First claim

1 . A graphene tape suitable for applying on a target surface, the tape comprising:
(a) a support layer; and (b) a first nanocomposite layer, the nanocomposite layer comprising a thin film layer and a graphene layer, wherein the thin film layer is disposed between the support layer and the graphene layer.

2 . The graphene tape according to claim 1 , wherein the thin film layer is a non-sacrificial thin film layer and is adapted to provide a functionality to the graphene layer.

3 . The graphene tape according to claim 1 , wherein the thin film layer is a polymer and is any one selected from the group consisting of: polymethyl methacrylate (PMMA), polyvinylidene fluoride (PVDF) and its copolymers, poly(3-hexylthiophene) (P3HT), and polylactide (PLA).

4 . The graphene tape according to claim 1 , wherein the graphene layer is a matrix of graphene embedded in a thin film.

5 . The graphene tape according to claim 1 , further comprising a second nanocomposite layer disposed on the support layer on a surface opposite the first nanocomposite layer.

6 . The graphene tape according to claim 1 , wherein the nanocomposite layer comprises a plurality of alternating thin film layers and graphene layers.

7 . The graphene tape according to claim 1 , further comprising an adhesive layer disposed between the support layer and the nanocomposite layer, wherein the thin film layer is disposed between the adhesive layer and the graphene layer.

8 . The graphene tape according to claim 1 , further comprising a first protector layer disposed on the support layer on a surface opposite the nanocomposite layer, and a second protector layer disposed on the nanocomposite layer on a surface opposite the support layer.

9 . The graphene tape according to claim 1 , wherein the graphene layer is patterned.

10 . The graphene tape according to claim 1 , wherein the target surface is any one selected from the group comprising: silicon wafers, glass, quartz, mica, polyethylene terephthalate, polyimide foils, and paper.

11 . A method of forming a graphene tape, the method comprising:
(a) providing a substrate; (b) forming a graphene layer on the substrate; (c) depositing a thin film layer on the graphene layer; (d) applying a supporting layer on the thin film layer; and (e) removing the substrate.

12 . The method according to claim 11 , wherein the thin film layer is a non-sacrificial thin film layer and is adapted to provide a functionality to the graphene layer.

13 . The method according to claim 11 , further comprising cleaning the graphene layer prior to depositing a thin film layer on the graphene layer.

14 . The method according to claim 11 , wherein the step of depositing the thin film layer on the graphene layer is any one selected from the group consisting of: bar-coating, spin coating, spray coating, polymer evaporation, Langmuir-Blodgett deposition, dip coating, doctor blade, slot-die coating, film lamination, and direction deposition from melt.

15 . The method according to claim 11 , wherein the step of applying the supporting layer on the thin film layer is by any one from selected group consisting of: electrostatic transfer, rolling, laminating, hot-pressing, and autoclave processing.

16 . The method according to claim 11 , wherein the step of removing the substrate is any one selected from the group consisting of: chemical removal, electrostatic transfer, and chemical delamination.

17 . The method according to claim 11 , wherein the steps (b) and (c) are repeated after step (e).

18 . The method according to claim 11 , wherein the method further comprises patterning the graphene and thin film layers.

19 . The method according to claim 11 , wherein the thin film layer is a polymer and is any one selected from the group consisting of: polymethyl methacrylate (PMMA), polyvinylidene fluoride (PVDF) and its copolymers, polymer poly(3-hexylthiophene) (P3HT), and polylactide (PLA).

20 . The method according to claim 11 , wherein the substrate is a copper metal substrate.

Assignees

• Nat Univ Singapore

Inventors

• Ozyilmaz Barbaros
• Fernandez Martin
• Kulkarni Eeshan Sandeep
• Castro Neto Antonio Helio

Classifications

• B05D1/02

  performed by spraying · CPC title

• B05D1/18

  performed by dipping · CPC title

• C23C16/50

  using electric discharges {(generation and control of plasma in discharge tubes for surface treatment H01J37/32, H01J37/34)} · CPC title

• B32B37/14

  characterised by the properties of the layers · CPC title

• B32B43/006

  Delaminating · CPC title