▎ 摘　　要

NOVELTY - Preparing antimony sulfide-based photoelectric detector comprises e.g. (i) taking fluorine-doped tin dioxide transparent conductive glass as substrate, ultrasonically washing with deionized water, ethanol and acetone, then washing with deionized water, drying with argon gas, (ii) mixing tetraisopropanol titanium alcohol solution with ethanol solution of hydrochloric acid, spinning on cleaned FTO, placing FTO with titanium dioxide precursor in tube resistance furnace, annealing at 400-600 degrees C for 30-50 minutes, (iii) depositing yttrium sulfide film on FTO/titanium dioxide and spin-coating. USE - The method is useful for preparing antimony sulfide-based photoelectric detector. DETAILED DESCRIPTION - Preparing antimony sulfide-based photoelectric detector comprises (i) taking fluorine-doped tin dioxide transparent conductive glass as substrate, ultrasonically washing with deionized water, ethanol and acetone for 5-15 minutes, then washing with deionized water and drying with argon gas, (ii) mixing tetraisopropanol titanium alcohol solution with ethanol solution of hydrochloric acid, spinning on cleaned fluorine-doped tin oxide (FTO), placing FTO with titanium dioxide precursor in tube resistance furnace, and annealing in air at 400-600 degrees C for 30-50 minutes, (iii) depositing yttrium sulfide film on FTO/titanium dioxide by thermal evaporation, spin-coating thioacetamide dimethylformamide solution on surface of deposited barium sulfide film, and then annealing in argon atmosphere at 200-400 degrees C for 30-60 minutes, (iv) growing graphene film using chemical vapor deposition (CVD), heating copper foil from room temperature to 900-1200 degrees C in argon atmosphere, passing hydrogen gas at 900-1200 degrees C, annealing for 30-40 minutes, then filling mixed gas of argon, hydrogen and methane, reacting for 10-30 minutes under argon atmosphere, cooling to room temperature, etching graphene-coated copper foil with iron nitrate solution, and cleaning with deionized water to obtain graphene, and (v) transferring graphene film grown in step (iv) to yttrium sulfide film prepared in step (iii), and taking silver glue and silver wire as electrode to obtain titanium dioxide/antimony trisulfide/graphene (TiO2/Sb2S3/Gr) photodetector.