| 摘要 |
The present invention provides a macromolecular compound by which the short-circuit current density and the photoelectric conversion efficiency are enhanced when the macromolecular compound is used in an organic layer contained in a photovoltaic cell. Specifically, the present invention provides a macromolecular compound having a structural unit represented by Formula (1): wherein Ar1 and Ar2 are the same as or different from each other and represent a trivalent heterocyclic group; X1 represents—O—,—S—,—C(═O)—,—S(═O)—,—SO2—,—Si(R3)(R4)—,—N(R5)—,—B(R6)—,—P(R7)—, or—P(═O)(R8)—; and R51 represents an alkyl group having 6 or more carbon atoms, an alkyloxy group having 6 or more carbon atoms, an alkylthio group having 6 or more carbon atoms, an aryl group having 6 or more carbon atoms, an aryloxy group having 6 or more carbon atoms, an arylthio group having 6 or more carbon atoms, an arylalkyl group having 7 or more carbon atoms, an arylalkyloxy group having 7 or more carbon atoms, an arylalkylthio group having 7 or more carbon atoms, an acyl group having 6 or more carbon atoms, or an acyloxy group having 6 or more carbon atoms.
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