▎ 摘 要
NOVELTY - Preparing graphene film at low temperature, comprises (a) depositing diamond-like carbon (DLC) thin film layer on a metal substrate, (b) placing the obtained metal substrate coated with DLC film in a non-oxidizing atmosphere, heating at 300-500 degrees C, insulating for 200 minutes, graphitizing the DLC film under high temperature with metal substrate catalyst to form graphene, cooling at room temperature in a non-oxidizing atmosphere to obtain graphene film overlaid on the metal substrate. USE - The method is useful for preparing graphene film at low temperature (claimed). ADVANTAGE - The method utilizes DLC as precursor for growth of graphene.