申请人:Yoshimura Ken
公开号:US20120205596A1
公开(公告)日:2012-08-16
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 Ar
1
and Ar
2
are the same as or different from each other and represent a trivalent heterocyclic group; X
1
represents —O—, —S—, —C(═O)—, —S(═O)—, —SO
2
—, —Si(R
3
)(R
4
)—, —N(R
5
)—, —B(R
6
)—, —P(R
7
)—, or —P(═O)(R
8
)—; and R
51
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.