▎ 摘　　要

NOVELTY - A glass sheet or other relatively flat structure is used for graphene thin-film processing. A polyethylene terephthalate (PET)-silica gel structure is absorbed on the graphene/metal thin film. The obtained structure is placed in an etching solution and the metal layer is etched to obtain a PET-silica gel/graphene structure. The structure is washed with dilute hydrochloric acid solution and deionized, and dried. The structure is constructed on a substrate, the PET-silica gel layer is lifted off, and graphene is transferred to the substrate. USE - Transfer of graphene thin film for physical adsorption. ADVANTAGE - The method enables simple, quick and efficient transfer of high-quality graphene thin films on large area of both flexible and rigid substrates, without residue generation. Repeated usage of PET-silica gel layer makes the process economical and environmentally-friendly. DETAILED DESCRIPTION - A glass sheet or other relatively flat structure is used for graphene thin-film processing. A polyethylene terephthalate (PET)-silica gel structure is absorbed on the graphene/metal thin film to obtain a PET-silica gel/graphite/metal structure. The obtained structure is placed in an etching solution and the metal layer is etched to obtain a PET-silica gel/graphene structure. The obtained structure is washed with dilute hydrochloric acid solution and deionized, and dried using nitrogen. The structure is constructed on a substrate, the PET-silica gel layer is lifted off, and graphene is transferred to the substrate.