NOVELTY - An organopolymer solar battery is prepared by preparing poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS)-containing solution; preparing zinc oxide (ZnO) or titanium oxide (TiO2) modified indium-tin oxide (ITO) or fluorine-doped tin oxide (FTO) substrate; preparing active layer; modifying surface of active layer; and preparing the polymer anode. The preparation of polymer anode involves dripping PEDOT:PSS on self-assembled molecular layer, spin-coating and spin-drying at 1000-4000 rpm, heating in vacuum drying box or airing for forming film to obtain desired solar battery.    USE - The method is used for preparing organopolymer solar battery. The ITO or FTO substrate modified by ZnO or TiO2 is used as the negative electrode.    ADVANTAGE - The method avoids vacuum process, thus avoiding high cost, strong dependency of device, complex process, high energy consumption and difficulty in large-area preparation.    DETAILED DESCRIPTION - The organopolymer solar battery is prepared by preparing PEDOT:PSS-containing solution; preparing ZnO or TiO2 modified ITO or FTO substrate; preparing active layer; modifying surface of active layer; and preparing the polymer anode. The preparation of PEDOT:PSS-containing solution involves:    (A) mixing conjugated polymer as donor material with acceptor material at mass ratio of 1:0.5-1:5 at room temperature, and dissolving in solvent to prepare 10-60 mg/ml solution;    (B) stirring solution at 200-2000 rpm for 1-10 hours to ensure that conjugated polymer is fully dissolved;    (C) preparing amphipathic self-assembled molecule dextran-poly(styrenesulfonate) (PAH-D:PSS) into aqueous solution (0.1-10 mg/ml), and adding sodium hydroxide (NaOH) or potassium hydroxide (KOH) for adjusting pH to 8-12; and    (D) adding dimethyl sulfoxide (DMSO) (1-10 vol.%) into PEDOT:PSS (PH500) to prepare (PEDOT:PSS)-containing mixed solution.    The preparation of ZnO or TiO2 modified ITO or FTO substrate involves cleaning ITO or FTO substrate, where ITO or FTO substrate is glass or transparent flexible polymer substrate on which ITO or FTO is deposited; sequentially cleaning ITO or FTO substrate in acetone, isopropyl alcohol and deionized water to be cleaned ultrasonically for 5-30 minutes; blowing nitrogen gas to surface of ITO or FTO substrate, and drying; heating and drying at 80-120 degrees C for 5-60 minutes for future use; preparing ITO or FTO substrate modified by ZnO; and preparing TiO2 with sol-gel method. The preparation of active layer involves spin-coating mixed solution of donor material and acceptor material on ITO or FTO substrate modified by ZnO or TIO2 at 500-3500 rpm to form active layer of 50-300 nm thick after solvent is fully volatized; transferring substrate coated with active layer into cover-carrying container filled with cyanobiphenyl (CB) or oxycyanobiphenyl (OCB) solvent atmosphere; carrying out solvation treatment for 10-40 minutes in solvent atmosphere at 20-60 degrees C; or transferring substrate coated with active layer in glove box, and annealing for 0.5-30 minutes at 80-200 degrees C. The modification of surface of active layer involves dispensing amphipathic self-assembled molecule PAH-D:PSS solution on active layer, remaining for 5-60 seconds, and spin-coating at 800-5000 rpm; washing to remove unassembled molecule on surface of active layer with deionized water; and spin-coating solution again at 800-5000 rpm; spin-drying aqueous solution on surface or drying with nitrogen gas, where thickens of modification layer is 100 nm to 10 mu m; and heating to remove non-volatized water to obtain film of 2-20 nm thick. The preparation of polymer anode involves dripping PEDOT:PSS (P VP Al 4083) on self-assembled molecular layer, spin-coating at 1500-4000 rpm to form film of 30-100 nm thick, and continuously spin-drying at 1000-4000 rpm, or heating, airing or blowing to dry; and dripping PH500 solution added with DMSO on the surface of the PEDOT:PSS, spin-coating at 800-2000 rpm for 2-20 seconds, and continuously spin-drying at 1000-4000 rpm or heating in vacuum drying box of 30-120 degrees C or airing to dry to form film of 50-800 nm thick to obtain desired solar battery. The preparation of ITO or FTO substrate modified by ZnO includes sol-gel method and chemical reaction method. The sol-gel method involves:    (A) dissolving soluble zinc salt (0.05-5 mmol/mL) in methanol, refluxing and stirring solution for 5-60 minutes at 50-70 degrees C;    (B) slowly dripping methanol solution of KOH or NaOH, where mass ratio of added hydroxide ion (-OH) to zinc ion (Zn2+) is 1:1-4;    (C) reacting materials for 1.5-3 hours, and reducing temperature to room temperature and stopping stirring;    (D) statically standing solution for 0.5-3 hours, and pouring away upper clear solution to obtain white emulsion;    (E) cleaning white emulsion with methanol solution, and statically standing for 30 minutes to 2 days;    (F) 1-10 times pouring away upper clear solution, and pouring away upper clear solution to obtain white zinc oxide nanoparticles;    (G) dispersing zinc oxide nanoparticles in solvent (10-100 mg/mL) including chloroform, chlorobenzene, dichlorobenzene, methylene dichloride or acetone;    (H) spin-coating solution on surface of clean ITO or FTO substrate at 500-4000 rpm to obtain ZnO layer of 30-50 thick; and    (I) placing ZnO layer on hot table of 100-150 degrees C to dry for 5-10 minutes to form ZnO nano-crystalline thin film.    The chemical reaction method involves dissolving soluble zinc salt (0.01-5 mg/mL) into water, methanol, ethanol, and/or 2-methyl cellosolve solution; adding 0-10% ethanol amine, diethanolamine or trolamine relative to vol. of zinc salt solution in solution; uniformly stirring mix solution at room temperature, and spin-coating obtained zinc salt solution on surface of ITO or FTO substrate to form ZnO layer of 30-50 nm thick; and heating ZnO layer in air until temperature is increased to 200-400 degrees C to convert zinc salt into ZnO nano-crystalline thin film; and preparing ITO or FTO substrate modified by TiO2. The preparation of TiO2 with sol-gel method involves:    (A) dissolving precursor titanium tetrachloride (TiCl4) in uniform solution formed by water and ethanol, where vol. ratio of TiCl4 to solvent is 1:10-1:50;    (B) performing hydrolysis or alcoholysis between the solute and solvent, where reaction product is aggregated into particles of 1 nm long and particles are joined to form sol;    (C) dipping clean ITO or FTO substrate in sol, and pulling out ITO or FTO substrate at constant speed of 1-10 mm/second, where sol forms uniform thin film on substrate because of surface adsorption and chemical bonding force; and    (D) obtaining thin film through repeated operations, where sol is evaporated and dried to become gel and gel is thermally processed in air at temperature of 100-500 degrees C to obtain ITO or FTO substrate modified by TiO2 thin film.