▎ 摘　　要

NOVELTY - A method for transferring graphene sheet from which carbonization catalyst is exfoliated to device involves forming binder layer (15) on surface of graphene sheet (13) formed on surface of carbonization catalyst where the binder layer and carbonization catalysts are on opposite surfaces of graphene sheet, where the binder layer supports and fixes all or part of graphene sheet; exfoliating carbonization catalyst from graphene sheet with an acid and wetting agent; and transferring graphene sheet from which the carbonization catalyst is exfoliated to device. USE - For transferring graphene sheet from which carbonization catalyst is exfoliated to device (claimed) e.g. carbon-based electrical or electronic device. The graphene sheet may be useful in various applications including transparent electrodes, conducting thin films, hydrogen storage media and optical fibers. ADVANTAGE - The binder layer prevents possible damage of graphene sheet during exfoliation of carbonization catalyst film, as the binder layer not only supports the graphene sheet but also fixes graphene sheet i.e. binds the graphene sheet. The graphene sheet has economic advantages over carbon nanotubes (CNTs), because no purification needed, as with synthesized CNTs and graphene sheets may be less expensive. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method of forming device involving forming a graphene sheet on surface of carbonization catalyst, forming binder layer on surface of graphene sheet opposite the carbonization catalyst, exfoliating carbonization catalyst from graphene sheet and transferring the graphene sheet to device. DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of a process of transferring the graphene sheet. Graphene sheet (13) Binder layer (15) Substrate (17) Field-effect transistor (20) Back gate (21) Insulating layer (22) Drain electrode (25) Source electrode (27)