TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Method: The optoelectric transducer is obtained by sensitizing a thin layer of oxide semiconductor microparticles provided on a base material with the pigment. The oxide semiconductor microparticles are sensitized with the pigment and one or more types of organic dye having a metal complex and other structure.Preferred Group: The pigment has one or more substituents chosen from carboxyl group, hydroxyl group, sulfo group, phosphoric acid group, amide group and mercapto group.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Component: The oxide semiconductor microparticles contain titanium dioxide as an essential component. The semiconductor microparticles are supported with the pigment in presence of an inclusion compound. Preferred Definitions:    R9 = substituent(s) chosen from carboxyl group, hydroxyl group, sulfo group, phosphoric acid group, amide group and mercapto group; and    R4 = amino group having optional substituent.    SPECIFIC COMPOUNDS - 147 pigments of formula (1) are disclosed, e.g. compound of formula (II).    EXAMPLE - Aromatic compound of formula (148) (in weight parts) (1.4) and glycine (1.9) were dissolved in dimethyl formamide (20). The mixture was stirred at 140degreesC for 2 hours. Subsequently, methanol (40) was added and precipitated, filtered and dried to obtain a pigment compound (2.8) of formula (31). Subsequently, the obtained pigment compound was dissolved in ethyl alcohol. A porous substrate (semiconductor thin film electrode which sintered porous titanium oxide microparticles on transparent electroconductive glass electrode) was immersed into the solution overnight. The resulting material was washed by acetonitrile, dried, and an optoelectric transducer of semiconductor microparticle thin film sensitized with pigment was obtained. Subsequently, a solar cell battery was produced using the transducer. The battery had short circuit current of 5.7 mA/cm2, releasing voltage of 0.54 V, and had excellent conversion efficiency.