Dye-sensitized photoelectric conversion device

A photoelectric conversion device comprising an oxide semiconductor fine material whose average particle diameter is from 1 nm to 500 nm sensitized with a methine dye represented by the following formula (10):

• wherein,
• A1, A2 and A3 are independently an optionally substituted C1-C4 aliphatic hydrocarbon residue or a hydrogen atom;
• when n1 is 2 or more and A1 and A2 present in plural, each of which may independently be the same or different;
• and
• two among A1, A2 and A3 which present in plural in the same molecular may be bonded to form an optionally substituted ring;
• X1 is an oxygen atom, a sulphur atom, a selenium atom or —NR″—, wherein R″ represents a hydrogen atom or an optionally substituted aliphatic hydrocarbon residue, an optionally substituted aromatic hydrocarbon residue, an optionally substituted heterocyclic residue;
• Y1 is an optionally substituted benzene ring and the optional substituent on the benzene ring is a group selected from a group consisting of (i) an optionally substituted amino group selected from a group consisting of mono- or dialkyl-substituted amino group, a monoalkylmonoaryl-substituted amino group, mono or diaryl-substituted amino group, and mono or dialkylene substituted amino group,
• (ii) an optionally substituted alkyl group where the substituent is a group selected from a group consisting of an aryl group, a halogen atom, an alkoxyl group, a cyano group, a hydroxyl group and a carboxyl group,
• (iii) an alkoxyl group selected from a group consisting of an unsubstituted alkoxyl group, an alkoxy-substituted alkoxyl group, a halogeno-substituted alkoxyl group and an aryl-substituted alkoxyl group,
• (iv) an acyl group, (v) an amide group, (vi) a hydroxyl group, and (vii) a halogen atom;
• R1 is a carboxyl group;
• R2 is an unsubstituted phenyl group;
• n1 is an integer from 0 to 4.