▎ 摘　　要

NOVELTY - Fabricating a thin film comprises: preparing a graphene oxide suspension on a metal surface; laminating the graphene oxide suspension in a substrate; reducing the graphene oxide laminated on the substrate; and coating the restored graphene oxide on the metal surface. USE - The method is useful for fabricating a thin film for preventing an oxidation of metals (claimed), where the film is copper foil. ADVANTAGE - The film stably prevents the oxidation of the metal surface, so that the physical properties of the metal are not affected.