A photoelectric conversion element including a photoconductor layer, wherein the photoconductor layer contains semiconductor fine particles carrying a metal complex dye of Formula (I); a metal complex dye, a dye solution, a dye-adsorbed electrode, a dye-sensitized solar cell, and a method for producing the solar cell:
M(LD)(LA).Math.(CI) Formula (I) wherein M represents a metal ion; LD represents a tridentate ligand of formulas (DL-1) to (DL-4); LA represents a specific tridentate ligand; and CI represents a counter ion: ##STR00001## Y.sup.1 and Y.sup.2 represent an oxygen, sulfur, nitrogen, or phosphorus atom; AD and BD represent a hydrocarbon or hetero ring; L represents a linking group of formulas (L-1) to (L-4); and Ra and Rb represent a substituent, ##STR00002## X represents a nitrogen or carbon atom; CD represents hetero ring; T represents O, S, NR.sup.L2 or PR.sup.L3; R.sup.L1 to R.sup.L3 represent a hydrogen atom or a substituent; and Alk represents an alkylene group.

A photoelectric conversion element including a photoconductor layer, wherein the photoconductor layer contains semiconductor fine particles carrying a metal complex dye of Formula (I); a metal complex dye, a dye solution, a dye-adsorbed electrode, a dye-sensitized solar cell, and a method for producing the solar cell:
M(LD)(LA).Math.(CI) Formula (I) wherein M represents a metal ion; LD represents a tridentate ligand of formulas (DL-1) to (DL-4); LA represents a specific tridentate ligand; and CI represents a counter ion: ##STR00001## Y.sup.1 and Y.sup.2 represent an oxygen, sulfur, nitrogen, or phosphorus atom; AD and BD represent a hydrocarbon or hetero ring; L represents a linking group of formulas (L-1) to (L-4); and Ra and Rb represent a substituent, ##STR00002## X represents a nitrogen or carbon atom; CD represents hetero ring; T represents O, S, NR.sup.L2 or PR.sup.L3; R.sup.L1 to R.sup.L3 represent a hydrogen atom or a substituent; and Alk represents an alkylene group.

A pigment of the present invention is a compound represented by General Formula (1) or General Formula (2)

##STR00001##

(in the above-described formulae, M is Sn or Ge, X is C or N, R1 is an alkyl group or a phenyl group, Y1 and Y2 are each hydrogen, a halogen group, a methyl group, an alkoxy group, a phenyl group, a diphenylamide group, a thiophenyl group, or a phenylethynyl group, and Z is a single bond or represented by Formula (3), where R2 is an alkyl group or a phenyl group).

A pigment of the present invention is a compound represented by General Formula (1) or General Formula (2)

##STR00001##

(in the above-described formulae, M is Sn or Ge, X is C or N, R1 is an alkyl group or a phenyl group, Y1 and Y2 are each hydrogen, a halogen group, a methyl group, an alkoxy group, a phenyl group, a diphenylamide group, a thiophenyl group, or a phenylethynyl group, and Z is a single bond or represented by Formula (3), where R2 is an alkyl group or a phenyl group).

The present invention relates to new pigment preparations based on metal azo pigments and aliphatic C.sub.10-22 monocarboxylic acids, to processes for their production and their use as a yellow pigment for colouring plastics, and to the use of aliphatic C.sub.10-22 monocarboxylic acids for improving the filtration properties of pigment preparations with at the same time improved colour strengths.

A pigment dispersion for aqueous cosmetic compositions and an aqueous cosmetic composition, the pigment dispersion comprising, at least an aluminum lake such as Red No. 40; at least one dispersant selected from polyorganic acids and salts thereof, and nonionic surfactants; and water and a water-soluble organic solvent.

A pigment dispersion for aqueous cosmetic compositions and an aqueous cosmetic composition, the pigment dispersion comprising, at least an aluminum lake such as Red No. 40; at least one dispersant selected from polyorganic acids and salts thereof, and nonionic surfactants; and water and a water-soluble organic solvent.