▎ 摘　　要

NOVELTY - A titanium dioxide-nitrogen sulfide/graphene composite film dye-sensitized solar cell preparing method involves adding 50 mL butyl titanate and 6 mL hydrofluoric acid to 200 mL PTFE, stirring at room temperature and using ethanol and distilled water for the self-coloring precipitate obtained by the reaction, drying in vacuum drying to obtain anatase titanium dioxide nanosheets and adding 54 mg graphene oxide to mixed solution of 6 mL deionized water and 19.5 mL ethanol to obtain suspension of graphene oxide, adding 6 g polyethylene glycol-polypropylene glycol-polyethylene glycol copolymer to a mixed solution of 22 mL concentrated hydrochloric acid and 70 mL ethanol and adding 20 mL titanic acid and titanium butoxide to mixed solution and stirring, after drying at room temperature, adding 1.5 g titanium dioxide nanosheets to mixed solution of graphene oxide suspension, mixing 0.5 mL acetophenone and 1.2 mL Triton X-100 and calcinating in nitrogen to obtain the finished product. USE - Method for preparing titanium dioxide-nitrogen sulfide/graphene composite film dye-sensitized solar cell. ADVANTAGE - The method enables preparing titanium dioxide-nitrogen sulfide/graphene composite film with reduced electronic transmission of resistance, enhanced light capture, increased photoelectron and better pore structure. DETAILED DESCRIPTION - A titanium dioxide-nitrogen sulfide/graphene composite film dye-sensitized solar cell preparing method involves adding 50 mL butyl titanate and 6 mL hydrofluoric acid to 200 mL PTFE, stirring at room temperature, heating at 180 degrees C for 24 hour and using ethanol and distilled water for the self-coloring precipitate obtained by the reaction, washing three times, drying in a vacuum drying oven at 80 degrees C for 6 hours to obtain anatase titanium dioxide nanosheets, adding 54 mg graphene oxide to a mixed solution of 6 mL deionized water and 19.5 mL ethanol and ultrasonically for 3 hours to obtain suspension of graphene oxide, adding 6 g polyethylene glycol-polypropylene glycol-polyethylene glycol copolymer to a mixed solution of 22 mL concentrated hydrochloric acid and 70 mL ethanol, stirring at 40 degrees C for 10 minutes and adding 20 mL titanic acid and titanium butoxide to mixed solution, stirring at 40 degrees C for 6 hours, and the obtained solution is allowed to stand at room temperature for 12 hours and immediately coating on the fluorine doped tin oxide conductive glass substrate by dipping-drawing method by calcining at 450 degrees C for 30 minutes after drying at room temperature, adding 1.5 g titanium dioxide nanosheets to a mixed solution of graphene oxide suspension, mixing 0.5 mL acetophenone and 1.2 mL Triton X-100 and grounding in a mortar for 40 minutes and coating by a doctor blade method, drying titanium dioxide-nitrogen sulfide pretreatment membrane substrate at room temperature and calcinating at 450 degrees C for 1 hour in nitrogen to obtain the finished product.