▎ 摘　　要

NOVELTY - Method-I of fabricating graphene sheets or graphene particles comprises: (a) dispersing graphene oxide in an alcohol solution to prepare a graphene oxide dispersion solution; (b) reducing the graphene oxide dispersion solution under a supercritical condition to prepare graphene sheets or graphene particles, each of which is as a cluster of the graphene sheets; and (c) separating the graphene sheets or graphene particles, followed by washing and drying. USE - The graphene sheets or graphene particles are useful for fabricating a graphene film (claimed). ADVANTAGE - The method provides graphene sheets or graphene particles with high quality and high electrical conductivities in an economical and environmentally friendly manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method-II of fabricating a graphene film configured to fabricate a graphene film in form of a thin film using the graphene sheets or graphene particles fabricated according to the method-I.