▎ 摘　　要

NOVELTY - The polymer-graphene oxide composite material (15) is obtained by dispersing a polymethylmethacrylate powder (13) in a solvent chosen from isopropanol (11), ethyl acetate, acetone, chloroform, tetrahydrofuran, polyvinyl alcohol, poly(acrylamide), poly(e-caprolactone), polylactic acid, poly(polylactide-cate-glycolide) and poly(poly(e-capsinone)), poly(capsinone), and poly (lactic-cactinone). The composite material comprises polymethyl methacrylic acid and composite material of graphene oxide, polystyrene, spiro-MeOTAD, poly vinyl alcohol, and/or poly acryamide. USE - Polymer-graphene oxide composite material used for photoelectric conversion device. ADVANTAGE - The polymer-graphene oxide composite material is provided with improved energy conversion efficiency. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: a method for preparing polymer-graphene oxide composite material; and a photoelectric conversion device. DESCRIPTION OF DRAWING(S) - The drawing shows a flow diagram showing the process for preparing polymer-graphene oxide composite material. (Drawing includes non-English language text) 11Isopropanol 12Dissolved isopropanol liquid 13Polymethylmethacrylate powder 14Graphene oxide powder 15Polymer-graphene oxide composite material