PIGMENT COMPOUND FOR SOLAR CELL, DYE-SENSITIZED PHOTOELECTRIC CONVERSION ELEMENT, AND DYE-SENSITIZED SOLAR CELL

摘要

PPROBLEM TO BE SOLVED: To provide a pigment compound for solar cells capable of improving the photoelectric conversion efficiency of solar cells, and to provide a dye-sensitized photoelectric conversion element and a dye-sensitized solar cell. PSOLUTION: The pigment compound for solar cells is represented by formula (1), wherein X is at least one aromatic group which is symmetrical with respect to the X-RSP1/SPbond axis or at least one hetero aromatic group which is symmetrical with respect to the X-RSP1/SPbond axis and contains one or more hetero atoms selected from oxygen, nitrogen, and sulfur; and YSP1/SPand YSP2/SPare each an electron-withdrawing group having stronger electron-withdrawing properties than X and each contain at least one acidic hydrogen capable of hydrogen bonding. PCOPYRIGHT: (C)2010,JPO&INPIT