Patent ID: 8242355

Claim:
A photoelectric conversion element comprising a pair of electrodes, and a semiconductor layer comprising a semiconductor carrying a dye and an electrolyte layer between the electrodes, wherein the dye is represented by Formulas 1 or 2; in Formula 1, Ar 1 and Ar 2 are each an arylene or heterocyclic group, or a composite group of an arylene group and a heterocyclic group, each of which may have a substituent, Ar 3 is an aryl or heterocyclic group or a composite group of an arylene group and a heterocyclic group, each of which may have a substituent, Ar 1 , Ar 2 and Ar 3 may form a ring by bonding with each other, X 1 and X 2 are each a straight chain residue having an acidic group and the straight chain residue may have a mono-valent substituent, and one to eight saturated or unsaturated aliphatic hydrocarbon group each having 5 to 30 carbon atoms are bonded to Ar 1 , Ar 2 and Ar 3 ; in Formula 2, Ar 11 , Ar 12 , Ar 13 , Ar 14 and Ar 15 are each an arylene or heterocyclic group, or a composite group of an arylene group and a heterocyclic group, each of which may have a substituent, Ar 11 , Ar 12 , Ar 13 , Ar 14 and Ar 15 may form a ring by bonding with each other, at least two of X 11 , X 12 , X 13 and X 14 are each an alkyl or alkenyl group having an acidic group and the alkyl or alkenyl group may have a mono-valent substituent and the remainders are each a hydrogen atom, and one to eight saturated or unsaturated aliphatic hydrocarbon group each having 5 to 30 carbon atoms bonded to Ar 11 , Ar 12 , Ar 13 , Ar 14 and Ar 15 .