▎ 摘　　要

NOVELTY - Attaching reduced graphene oxide and/or graphene oxide to a polymer layer, comprises: forming a polymer layer having an exterior surface, where the exterior surface is hydrophobic; subjecting the hydrophobic, exterior surface of the polymer layer to UV/ozone exposure, where the UV/ozone exposure changes the hydrophobic, exterior surface to a hydrophilic, exterior surface; and applying reduced graphene oxide and/or graphene oxide to the hydrophilic surface of the polymer layer. USE - The method is useful for attaching reduced graphene oxide and/or graphene oxide to a polymer layer (claimed) to form graphene sheets which are used in solar cells. ADVANTAGE - The method provides solar cells with improved efficiency and high performance.