| 摘要 |
Provided are: a photoelectric conversion element provided with an electrically conductive support, an electrolyte-containing photosensitive layer, an electrolyte-containing charge-transfer layer, and a counter electrode, wherein said photosensitive layer is provided with semiconductor fine particles which support a metal complex dye represented by formula (I); a dye-sensitized solar cell; the metal complex dye; and a dye solution. Forumla (I) M(LA)(LD)mD(LX)mX∙(CI)mY In formula (I): M represents a metal ion; LA represents a tridentate ligand represented by formula (AL-1); LD represents a bidentate ligand or a tridentate ligand different to LA; at least one of the ligand atoms of LD which are bonded to the metal ion (M) is nitrogen, and at least one of said ligand atoms is an anion; mD represents 0 or 1; LX represents a monodentate ligand; mX is 0, 1, or 3; CI represents a counter ion; and mY is an integer in the range of 0-3. In formula (AL-1): Za and Zb represent non-metal atom groups required to form five-membered or six-membered rings; at least one from among ring Za and ring Zb has an acidic group; LW represents nitrogen or CRW; RW represents hydrogen or a substituent; L1 represents a ring group represented by any of formulae (X-1) to (X-3); L2 represents an ethenylene group, an ethynylene group, or an aromatic ring group which is either a monocyclic ring selected from the group consisting of a benzene ring, a furan ring, a silole ring, a selenophene ring, and nitrogen-containing aromatic rings, or a polycyclic ring including said monocyclic ring as a fused ring, said aromatic ring group being bonded to L1 by a ring-constituting carbon atom that forms the monocyclic ring; Z represents hydrogen or a substituent; and the -L1-L2-Z group does not have an acidic group or an amino group. Zt2 and Zt3 represent non-metal atom groups required to form fused rings with the thiophene rings in the respective formulae. RT1 to RT3 represent substituents. PT1 represents an integer in the range of 0-2. PT2 and PT3 are 0 or above, and are not greater than the number of hydrogen atoms when the groups represented by formulae (X-2) and (X-3) are unsubtituted. Each * represents the binding position with L2 or the ring including LW. |
