▎ 摘　　要

NOVELTY - Manufacture of single crystal graphene film involves melting catalyst layer on a substrate, cooling the molten catalyst to solidify catalyst layer, forming catalyst region, and expanding solidified catalyst region to expand cooling area of the catalyst layer. A carbon source is supplied to the catalyst during cooling or expanding process. USE - Manufacture of single crystal graphene film (claimed). ADVANTAGE - The boundary between the crystals is minimized by increasing the surface area of graphene crystal of single crystal graphene film.