Photoelectric conversion element, dye-sensitized solar cell, metal complex dye, dye solution, dye-adsorbing electrode, and method for producing dye-sensitized solar battery

摘要

A metal-complex dye used in a photoelectric conversion element of the present invention is represented by the following formula (I): M(LD)(LA)(LX)·(Y)n formula (I) In the formula (I), M represents a metal ion, LD represents a bidentate ligand represented by any of formulas (2L-1) to (2L-3), LA represents a tridentate ligand represented by formula (AL-1) or formula (AL-2), LX represents a monodentate ligand, Y represents a counter ion necessary for neutralizing charge, and n represents an integer of 0 to 4. The metal-complex dye of the present invention is equipped with such a specific bidentate ligand, thereby making it possible to improve both the spectral sensitivity characteristic and the durability of the photoelectric conversion element in a long wavelength region.