▎ 摘　　要

NOVELTY - Graphene thin film of target substrate comprises substrate film/film composite structure in adhesive film containing polyvinylpyrrolidone. USE - Graphene thin film of target substrate. ADVANTAGE - The graphene thin film of target substrate has reduces sheet resistance of graphene film to 180 ohms per square and peel force to 5 Newton, and does not graphene. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing graphene thin film, which involves: (A) joining film substrate metal together with graphene surface with surface adhesive; (B) removing metal substrate to obtain graphene film/graphene composite film; (C) bonding graphene film/graphene composite film and adhesive film/substrate film to obtain graphene film/adhesive film; and (D) removing film surface to obtain desired product.