Photoelectric conversion element, photoelectrochemical cell, and metal complex dye used therein
AssigneeFUJIFILM Corporation
InventorsYukio TANI, Tatsuya SUSUKI, Katsumi KOBAYASHI
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Abstract
A photoelectric conversion element having a laminate structure including, provided on an electrically conductive support, a photoconductor layer having a layer of dye-adsorbed semiconductor fine particles, a charge transfer layer, and a counter electrode, wherein the dye is a metal complex dye represented by the following formula (1): M1L1L2Z1 (1) wherein, in formula (1), M1 represents a metal atom; Z1 represents a monodentate ligand; L1 represents a specific tridentate ligand; and L2 represents a specific bidentate ligand.
Claims12
A photoelectric conversion element having a laminate structure comprising, provided on an electrically conductive support, a photoconductor layer having a layer of dye-adsorbed semiconductor fine particles, a charge transfer layer, and a counter electrode, wherein the dye is a metal complex dye represented by the following formula (1):
- M1L1L2Z1 (1)
- wherein, in formula (1), M1 represents a metal atom;
- Z1 represents a monodentate ligand;
- L1 represents a tridentate ligand represented by formula (L1);
- and L2 represents a bidentate ligand represented by formula (L2),
- wherein, in formula (L1), Za, Zb, and Zc represent a group of non-metallic atoms necessary for forming a 5- or 6-membered ring;
- and at least one ring formed by Za, Zb or Zc has an acidic group;
- wherein, in formula (L2), R1 represents an alkyl group, an alkylthio group, an alkoxy group, a halogen atom, or an aromatic group;
- m1 represents an integer of 0 to 3;
- and E is represented by any one of formulae (L2-1) to (L2-6):
- wherein, in formulae (L2-1) to (L2-6), R represents an alkyl group, an alkoxy group, a halogen atom, an aromatic group, or a heterocyclic group;
- m represents an integer of 0 or more;
- the symbol “*” represents a binding site with the pyridine ring;
- and G1 is represented by any one of formulae (G1-1) to (G1-7):
- wherein, in formulae (G1-1) to (G1-7), X represents an O atom, a S atom, a Se atom, NRA, CRA2, or SiRA2;
- RA represents a hydrogen atom, an alkyl group, or an aromatic group;
- na represents an integer of 0 to 3;
- nb represents an integer of 1 to 3;
- nc represents an integer of 0 to 2;
- ma represents an integer of 0 to 4;
- and in formula (G1-1), the sum of na and nb is 2 or more, and
- Ra, Rb, Rd and Re each independently represent a hydrogen atom, an alkyl group, an alkoxy group, an alkylthio group, or an amino group;
- and Re represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an alkoxy group, an alkylthio group, or an amino group.
A metal complex dye represented by formula (1):
- M1L1L2Z1 (1)
- wherein, in formula (1), M1 represents a metal atom;
- Z1 represents a monodentate ligand;
- L1 represents a tridentate ligand represented by formula (L1);
- and L2 represents a bidentate ligand represented by formula (L2);
- wherein, in formula (L1), Za, Zb, and Zc represent a group of non-metallic atoms necessary for forming a 5- or 6-membered ring;
- and at least one ring formed by Za, Zb or Zc has an acidic group;
- wherein, in formula (L2), R1 represents an alkyl group, an alkylthio group, an alkoxy group, a halogen atom, an aromatic group or a heterocyclic group;
- m1 represents an integer of 0 to 3;
- and E is represented by any one of formulae (L2-1) to (L2-6):
- wherein, in formulae (L2-1) to (L2-6), R represents an alkyl group, an alkoxy group, a halogen atom, an aromatic group, or a heterocyclic group;
- m represents an integer of 0 or more;
- the symbol “*” represents a binding site with the pyridine ring;
- and G1 is represented by any one of formulae (G1-1) to (G1-7):
- wherein, in formulae (G1-1) to (G1-7), X represents an O atom, a S atom, a Se atom, NRA, CRA2, or SiRA2;
- RA represents a hydrogen atom, an alkyl group, or an aromatic group;
- na represents an integer of 0 to 3;
- nb represents an integer of 1 to 3;
- nc represents an integer of 0 to 2;
- ma represents an integer of 0 to 4;
- and in formula (G1-1), the sum of na and nb is 2 or more, and
- Ra, Rb, Rd and Re each independently represent a hydrogen atom, an alkyl group, an alkoxy group, an alkylthio group, or an amino group;
- and Re represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an alkoxy group, an alkylthio group, or an amino group.
Dependencies are inferred from the claim text.