▎ 摘　　要

NOVELTY - A graphene film contains several graphene domains. The area of each domain is 0.000001 mu m2 to 100000 mm2. The orientation of 6-membered ring in the domain is aligned in a single direction on the whole graphene film. USE - Graphene film is used for composite complex (claimed) for electronics. ADVANTAGE - The graphene film has high homogeneity and uniform crystal orientation, and low domain boundary. The graphene film can be manufactured economically. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) composite complex, which is obtained by transferring graphene film on a substrate. The graphene thin film has size of 10 nm to 1 m2; and (2) manufacture of graphene film, which involves forming epitaxial metal film on a monocrystal substrate, contacting carbon raw material on the surface of epitaxial metal film, and growing graphene film.