Photoelectric conversion material, method for producing the same, and organic photovoltaic cell containing the same

Abstract

In a BHJ solar cell, a photoelectric conversion layer contains a condensed carbocyclic ring polymer (photoelectric conversion material). The condensed carbocyclic ring polymer is obtained by polymerizing monomers represented by the following general formulae (1) and (2) to prepare a polyphenylene and then reacting the polyphenylene. R1 to R6 in the general formula (1) independently represent a hydrogen atom or a solubilizing group, and the monomer represented by the general formula (1) exhibits a higher solubility in an organic solvent with the solubilizing group than without the solubilizing group. Ar in the general formula (2) represents an unsubstituted or substituted aromatic group, and R7 and R8 in the general formula (2) independently represent a hydrogen atom, an unsubstituted or substituted aromatic group, a methyl group, or a silyl group.