▎ 摘　　要

NOVELTY - A composite comprises a single crystal sapphire substrate having a film surface with a surface roughness of 5 nm or less, a metal film grown on the film formation surface, and a graphene film grown on the metal film. USE - Composite (claimed). ADVANTAGE - The graphene film peeled from the composite has high quality and crystallinity. The graphene film grows without being inhibited by the unevenness of the growth surface. The defect on the graphene film is eliminated. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) graphene film, which is obtained by peeling from the composite; (2) manufacture of composite, which involves preparing the single crystal sapphire substrate, epitaxially growing metal film on the sapphire substrate, and epitaxially growing the graphene film on the metal film; and (3) manufacture of graphene film.