Organic photoelectric conversion element, and solar cell and optical sensor array each using same

An organic photoelectric conversion element comprising, on a transparent substrate, a transparent first electrode;

• a photoelectric conversion layer containing a p-type organic semiconductor material and an n-type organic semiconductor material;
• and a second electrode in this sequence,
• wherein the photoelectric conversion layer comprises a conjugated polymer compound having a partial structure represented by the following formula (1) as the p-type organic semiconductor material:
• wherein R1 and R2 each independently represent a hydrogen atom, an alkyl group having 1 to 30 carbon atoms which may be substituted, an alkoxy group having 1 to 30 carbon atoms which may be substituted, an alkyl ester group having 2 to 30 carbon atoms which may be substituted, a halogen atom, an alkoxycarbonyl group having 2 to 30 carbon atoms which may be substituted, an alkylaminocarbonyl group having 2 to 40 carbon atoms which may be substituted, an acyl group having 2 to 30 carbon atoms which may be substituted, an amino group which may be substituted, an acylamino group having 2 to 30 carbon atoms which may be substituted, an aryl group having 6 to 30 carbon atoms which may be substituted, or a heterocyclic group having 3 to 30 carbon atoms which may be substituted;
• X1 and X2 each independently represent:
• wherein R3 to R7 each independently represent a hydrogen atom, an alkyl group having 1 to 30 carbon atoms which may be substituted, an alkoxy group having 1 to 30 carbon atoms which may be substituted, an alkyl ester group having 2 to 30 carbon atoms which may be substituted, a halogen atom, an alkoxycarbonyl group having 2 to 30 carbon atoms which may be substituted, an alkylaminocarbonyl group having 2 to 40 carbon atoms which may be substituted, an acyl group having 2 to 30 carbon atoms which may be substituted, an amino group which may be substituted, an acylamino group having 2 to 30 carbon atoms which may be substituted, an aryl group having 6 to 30 carbon atoms which may be substituted, or a heterocyclic group having 3 to 30 carbon atoms which may be substituted;
• and when R6 and R7 are aryl groups, they may be bonded to each other and form a ring;
• provided that X1 and X2 do not simultaneously represent: