NOVELTY - The method involves selecting a light absorption layer (S400) that is provided with a concavo-convex-shaped structure. Mixture is prepared (S100) to obtain voluntarily formed composition (S200) that is mixed with nano-aggregate compound, better solvent, poor solvent and a light absorption material. The light absorption material is selected from anyone among an optical absorption organic compound and an optical absorption inorganic material. The organic compound is selected from anyone among an organic semiconductor material and phosphor.    USE - Method for manufacturing a light absorption layer for a solar cell (Claimed).    ADVANTAGE - The method enables simplifying a manufacturing process of the light absorption layer of a solar cell. The method enables increasing transportation efficiency of an electric charge in an anode and a cathode by reducing recombination of exciton. The method enables suppressing total reflection of incoming sunlight so as to reduce light loss. The method enables increasing an optical absorption area so as to improve photoelectric conversion efficiency. The method enables improving photoelectric conversion efficiency of the solar cell and working efficiency of the solar cell.    DETAILED DESCRIPTION - The optical absorption inorganic material is selected from an inorganic semiconductor material. The better solvent is selected from group of chlorobenzene, O-dichlorobenzene, chloroform, toluene and hexane. The poor solvent is selected from group of propylene glycol monomethyl ether acetate, ethylene glycol, tetraethoxysilane, dibuthyl ether, dimethylformamide, xylene, water, methanol, ethanol and propanol. INDEPENDENT CLAIMS are also included for the following:    (1) a solar cell    (2) a solar cell manufacturing method.    DESCRIPTION OF DRAWING(S) - The drawing shows a flow diagram illustrating a method for manufacturing a light absorption layer for a solar cell.'(Drawing includes non-English language text)'    Mixture preparing step (S100)    Composition obtaining step (S200)    Composition applying step (S300)    Light absorption layer fixing step (S400)