Transfer method of graphene film

Abstract

The invention provides a transfer method of a graphene film, which at least comprises the following steps: providing a metal substrate, and sequentially forming a graphene film, an organic polymer protective layer and a polymer frame support layer on the metal substrate surface, wherein the organic polymer protective layer and polymer frame support layer respectively have surface energy or viscosity; peeling the graphene film from the metal substrate, and attaching the graphene film to a target substrate; and finally, sequentially peeling the polymer frame support layer and organic polymer protective layer. By utilizing the proper surface energy or proper viscosity of the organic polymer protective layer and polymer frame support layer, the organic polymer protective layer and polymer frame support layer can be directly attached without any adhesive, and can be peeled without damage after transfer, thereby simplifying and stabilizing the technique and ensuring the complete transfer of the graphene film and the reutilization of the metal substrate.

Description

technical field [0001] The invention relates to the field of material preparation and processing, in particular to a transfer method of a graphene film. Background technique [0002] Graphene is a two-dimensional material with a honeycomb structure formed by a single layer of carbon atoms arranged in a hexagonal structure. The mechanical properties have received extensive attention from researchers from all over the world. In the past decade, a variety of methods and processes have been developed for the preparation of graphene films, mainly micromechanical exfoliation, redox, epitaxial growth, and metal-catalyzed chemical vapor deposition (CVD). Because the metal-catalyzed CVD method has advantages in growing large-area continuous graphene films, this method has become the main growth method of graphene films. It uses metal substrates such as copper and nickel as substrates and catalysts to catalyze the decomposition and deposition of carbon sources such as methane and ac...

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned shortcoming of prior art, the object of the present invention is to provide a kind of transfer method of graphene film, be used to solve the problem of needing to add viscous droplet to strengthen pasting between support frame and polymer protective layer in prior art. joint strength, and graphene cannot be completely transferred in the future, etc.

Images