| 摘要 |
[Problem] To provide a photosensitizer which has excellent conversion efficiency and durability. [Solution] A photosensitizer which is characterized by being a dye represented by formula (I) or a salt thereof. In the chemical formula, m represents an integer of 0-4; n represents an integer of 0 or 1; p represents an integer of 0-2; each of R1, R2 and R3 represents a hydrogen atom, an alkyl group, an aryl group or the like; each of R4, R4', R4", R5, R6, R7, R8 and R9 represents a hydrogen atom, an alkyl group or the like; X represents a carbonyl group or the like; and each of Z1 and Z2 represents a carboxyl group or the like. |
