NOVELTY - Preparation of antimony sulfide-based organic-inorganic composite material involves adding titanium salt in anhydrous ethanol, adding surfactant into mixed solution, adjusting pH value of the solution, coating obtained solution on conductive substrate and calcining, mixing antimony salt and glacial acetic acid, stirring, adding sodium thiosulfate solution, placing the substrate in obtained solution, depositing antimony sulfide on substrate, calcining, spin-coating poly(3,4-ethylenedioxythiophene)-polystyrene sulfonate on the substrate, drying, and sputtering-plating obtained product.    USE - Preparation of organic-inorganic composite material used for solar battery.    ADVANTAGE - The antimony sulfide-based organic-inorganic composite material is economically prepared, and improves photoelectric conversion efficiency and stability of the compact solar battery.    DETAILED DESCRIPTION - Preparation of antimony sulfide-based organic-inorganic composite material involves adding titanium salt in anhydrous ethanol, adding surfactant into mixed solution, adjusting pH value of the solution, coating obtained solution on a conductive substrate, drying coated substrate at 70-120 degrees C for 2-4 hours, crystallizing at 90-150 degrees C for 24-48 hours, and calcining obtained product at 400 degrees C for 1-4 hours, mixing antimony salt and glacial acetic acid in the molar ratio of 1:8-10, stirring, adding 1-2 moles sodium thiosulfate solution into mixed solution, placing calcined coated substrate in obtained solution, depositing antimony sulfide on coated substrate by chemical bath deposition method, calcining the resultant substrate at 250-400 degrees C for 0.5-2 hours, spin-coating 15-25 mg/ml poly(3-hexylthiophene) (P3HT) solution on antimony sulfide/titanium dioxide film of substrate, spin-coating poly(3,4-ethylenedioxythiophene)-polystyrene sulfonate on the P3HT/antimony sulfide/titanium dioxide film of substrate, drying resultant coated substrate at 70-120 degrees C for 2-4 hours under protection of nitrogen, cooling the substrate to room temperature, and sputtering-plating obtained product. The molar ratio of titanium salt and anhydrous ethanol is 1:50-100. The content of surfactant with respect to titanium salt is 0.5 mol%.