▎ 摘　　要

NOVELTY - A method (m1) for exfoliating a carbonization catalyst from a graphene sheet involves forming a binder layer on a surface of the graphene sheet, where the binder layer supports and fixes all or part of the graphene sheet formed on the carbonization catalyst; and exfoliating the carbonization catalyst from the graphene sheet. USE - For exfoliating a carbonization catalyst from a graphene sheet used for forming a device (claimed) including transparent electrodes, conducting thin films, hydrogen storage media, optical fibers and electronic devices. ADVANTAGE - The binder layer supports and fixes all or part of the graphene sheet formed on the carbonization catalyst. When exfoliating a carbonization catalyst from a graphene sheet on which the carbonization catalyst has grown, the graphene sheet may be obtained without damage and may be readily transferred to a desired device by forming a binder layer which may support and fix the graphene sheet. Thus obtained graphene sheet has a larger area than the graphene sheet obtained through other physical methods and is useful in various applications. Further, since thus obtained graphene sheet may be not self-rolling even after it is exposed to the air, the graphene sheet may be useful in the various applications. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) method (m2) for transferring a graphene sheet from which a carbonization catalyst is exfoliated to a device involving forming a binder layer on a surface of a graphene sheet formed on a surface of a carbonization catalyst where the binder layer and carbonization catalysts are on opposite surfaces of the graphene sheet, where the binder layer supports and fixes all or part of the graphene sheet; exfoliating the carbonization catalyst from the graphene sheet; and transferring the graphene sheet from which the carbonization catalyst is exfoliated to a device; (2) graphene sheet obtained by forming a binder layer on a surface of a graphene sheet which is formed on a surface of a carbonization catalyst, where the binder layer and carbonization catalyst are on opposite surfaces of the graphene sheet and the binder layer supports and fixes all or part of the graphene sheet formed on the carbonization catalyst, and exfoliating the carbonization catalyst from the graphene sheet; (3) method of forming a device, involving forming a graphene sheet on a surface of a carbonization catalyst, forming a binder layer on a surface of the graphene sheet opposite the carbonization catalyst, where the binder layer supports and fixes all or part of the graphene sheet formed on the carbonization catalyst, exfoliating the carbonization catalyst from the graphene sheet, and transferring the graphene sheet to the device.