| abstract |
PROBLEM TO BE SOLVED: To provide a metal complex dye having good light absorbing ability in a wide wavelength range from visible light to infrared light, a photoelectric conversion element containing semiconductor fine particles adsorbing the metal complex dye, and a photoelectrochemical cell. . SOLUTION: General formula: (LL 1 ) m1 (X 1 ) m2 M 1 (BL) M 2 (X 2 ) m3 (LL 2 ) m4 ยท CI (where M 1 and M 2 each represent a metal atom, BL represents a ligand having two or more sites capable of bidentate coordinating nitrogen to a metal atom, X 1 and X 2 independently represents a monodentate or bidentate ligand coordinated by an acyloxy group, an acylthio group, etc., and LL 1 and LL 2 each represent a nonmetallic element required to complete an independent 5- or 6-membered ring. Represents a bidentate ligand having an atom, m1 and m4 are each independently 0 or 1, m2 and m3 are each independently an integer of 1 to 4, and when m2 or m3 is 2 or more, X 1 Or X 2 may be the same or different, and X 1 X 2 may be linked to each other, and CI represents a counter ion when a counter ion is required to neutralize the charge. A photoelectric conversion element containing semiconductor fine particles sensitized by the metal complex dye represented by the formula (1). |