▎ 摘　　要

NOVELTY - A specific substance capable of generating electron-donating functional group, is activated by irradiating ultraviolet-ray. The edge portion of graphene sheet is chemically modified or physically modified by the activated electron-donating functional group to obtain graphene sheet-type material. USE - Formation of graphene sheet-type material (claimed) used for manufacture of semiconductor integrated circuit device and graphene channel transistor. ADVANTAGE - The method efficiently provides graphene sheet-type material having excellent electrical property.