NOVELTY - An organic thin-film photoelectric transducer (10) includes transparent conductive film (24), n-type semiconductor layer, p-type organic semiconductor layer (14), and electroconductive substrate (28) which are sequentially arranged on transparent substrate (26). The n-type semiconductor layer is porous layer (12) includes oxide microparticles (16) of n-type organic semiconductor material which supports electronic acceptor (20) comprising n-type organic semiconductor on the surface of insulating film (18). The particles surface is covered with the insulation film.    USE - Organic thin-film photoelectric transducer is used for solar cell (claimed).    ADVANTAGE - The organic thin-film photoelectric transducer has high photoelectric conversion efficiency.    DETAILED DESCRIPTION - An organic thin-film photoelectric transducer includes transparent conductive film, n-type semiconductor layer, p-type organic semiconductor layer, and electroconductive substrate which are sequentially arranged on transparent substrate. The n-type semiconductor layer is a porous layer includes oxide microparticles of n-type organic semiconductor material which supports the electronic acceptor comprising n-type organic semiconductor on the surface of an insulating film. The particles surface is covered with the insulation film. The p-type organic semiconductor layer is impregnated, and forms an electronic donor. The electronic acceptor is a fullerene derivative which introduces the carboxyl group into fullerene. The oxide microparticles are titanium oxide or stannic oxide. The surface of insulating film supporting electronic acceptor is further supported by pigment. The insulating film includes alumina thin film or magnesium oxide thin film. The p-type organic semiconductor layer includes polythiophene.    DESCRIPTION OF DRAWING(S) - The drawing shows the typical structural view of organic thin film photoelectric transducer.    Organic thin-film photoelectric transducer (10)    Porous layer (12)    P-type organic semiconductor layer (14)    Oxide microparticles (16)    Insulating film (18)    Electronic acceptor (20)    Transparent conductive film (24)    Transparent substrate (26)    Electroconductive substrate (28)