Patent ID: 8535553
Filing Date: 2013-09-17
Classification: B82Y,C01B,H01L,Y10T

Abstract:
1. A method for forming a single-layer or few-layer graphene film comprising: forming a graphene film having opposing surfaces, each with an area of at least 1 cm coating the graphene film on the growth substrate with a protective support layer; etching the surface of the growth substrate to release the graphene film and the protective support layer from the growth substrate, the protective support layer maintaining the integrity of the graphene film during and after its release from the growth substrate; applying the graphene film and protective support layer onto a target substrate after release from the growth substrate; removing the protective support layer from the graphene film by exposing the protective support layer to a solvent after the graphene film is applied to the target substrate; and using a liquid to float the graphene-film-coated protective support layer between release of the graphene and protective support layer from the growth substrate and application of the graphene and protective support layer to the target substrate.