▎ 摘 要
NOVELTY - A graphene thin film has an electrolytic copper foil whose surface roughness is 0.0001-0.35 mu m, where the electrolytic copper foil has a crystalline structure. USE - Graphene thin film. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for manufacturing a graphene thin film. DESCRIPTION OF DRAWING(S) - The drawing shows a photograph showing graphene grown on epitaxial structure of an electrolytic copper foil.