Electrolyte for dye-sensitized solar cell element and dye-sensitized solar cell element using the same

Abstract

Disclosed is an electrolyte for dye-sensitized solar cell element, which contains a halogen, a halide salt, and a basic substance and in which a redox pair is formed by the halogen and the halide salt, the halogen and the halide salt have the same halogen atom, and the basic substance contains a first imidazole compound constituted by a benzimidazole compound and a second imidazole compound represented by the following formula (1), in which a volume molar concentration C2 of the second imidazole compound is lower than a volume molar concentration C1 of the first imidazole compound: (in the formula (1), R1 to R4 each independently represent a hydrogen atom, a hydrocarbon group having from 1 to 6 carbon atoms or the like. R5 and R6 each independently represent an aliphatic hydrocarbon group or the like).

Dependencies are inferred from the claim text.