▎ 摘　　要

NOVELTY - Dry graphene transfer, comprises: growing graphene on growth substrate; applying electron beam generated carbon dioxide plasma to chemically modify transfer substrate to enhance its adhesion to graphene; depositing N-ethylamino-4-azidotetrafluorobenzoate (TFPA) with amine end group to chemically modified transfer substrate; contacting the graphene on growth substrate with azide end-group on the rinsed chemically modified transfer substrate and transfer printing; and separating the transfer substrate with attached graphene from the growth substrate, where the amine end group attaches to the chemically modified transfer substrate leaving an azide end-group available to attach to the graphene and the deposition comprises placing the chemically modified transfer substrate in a 4 mM TFPA solution for 2 hours, rinsing the chemically modified transfer substrate after removal from the TFPA solution, and sonicating for 10 minutes in methanol the rinsed chemically modified transfer substrate. USE - The method is useful for dry graphene transfer from metal foils. ADVANTAGE - The method: utilizes the graphene-transfer substrate cohesive strength that is higher than that of the graphene-growth substrate, thus providing successful print; eliminates damage to the graphene associated with wet chemical transfer techniques, reduces the transfer time and preserves the metal foil substrates; and generates no chemical waste, allows the metal foils to be reused and causes no changes in the graphene electrical properties. DETAILED DESCRIPTION - Dry graphene transfer, comprises: growing graphene on a growth substrate; applying an electron beam generated carbon dioxide plasma to chemically modify a transfer substrate to enhance its adhesion to graphene; depositing N-ethylamino-4-azidotetrafluorobenzoate (TFPA) with an amine end group to the chemically modified transfer substrate; contacting the graphene on the growth substrate with the azide end-group on the rinsed chemically modified transfer substrate and transfer printing; and separating the transfer substrate with attached graphene from the growth substrate, where the amine end group attaches to the chemically modified transfer substrate leaving an azide end-group available to attach to the graphene and the deposition comprises placing the chemically modified transfer substrate in a 4 mM TFPA solution for 2 hours, rinsing the chemically modified transfer substrate after removal from the TFPA solution, and sonicating for 10 minutes in methanol the rinsed chemically modified transfer substrate.