▎ 摘　　要

NOVELTY - Graphene/metal hetero-junction composite film is a soft film, the graphene film on the large flake substrate and large scale graphene film substrate is firmly anchored with combination of metal layers. USE - Graphene/metal hetero-junction composite film. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing graphene/metal hetero-junction composite film, which involves coating the large flake graphene oxide on surface of copper foil, evaporating and drying the heated roll to form large flake graphene oxide film, pre-heating, subjecting to high temperature treatment, re-heating and rolling to obtain the flexible graphene film, then the metal compound on the flexible graphene film to obtain the flake graphene/metal hetero-junction composite film.