Patent ID: 8729387

Claim:
An organic photoelectric conversion element comprising a bulk hetero unction layer containing a mixture of an n-type semiconductor material and a p-type semiconductor material, wherein the n-type semiconductor material is a polymer represented by Formula (1) and the p-type semiconductor material is a tetrabenzoporphyrin derivative selected from the group consisting of BP-1, -2 and BP-3, wherein, R 1 and R 2 each represent a substituent selected from the group consisting of a substituted or unsubstituted alkyl group, cycloalkyl group, aralkyl group, aryl group, heteroaryl group and silyl group; L 1 and L 2 each represent a substituted or unsubstituted alkylene group, alkenediyl group, alkynediyl group, cycloalkylene group, arylene group, heteroarylene group, silylene group, ether group, thioether group, carbonyl group, carboxyl group, amino group, amide group, or a structure containing a plurality of the foregoing groups connected with each other; and n is an integer of 2 or more, provided that Formula (1) shows one hemispherical portion among a spherical fullerene structure and the other hemispherical portion is omitted, and a spatial relationship of a first substituent containing R 1 and L 1 to a second substituent containing R 2 and L 2 in the fullerene structure is arbitrary,