SEMICONDUCTING POLYMERS AND TERNARY BLENDS THEREOF

摘要

Semiconducting photovoltaic polymers and compositions are disclosed. The polymers and compositions exhibit increased power conversion efficiency in solar cells and other applications.

主权项

1. A polymer of formula (I): wherein Y1, Y2, Y3, Y4, Y5, and Y6 are independently selected from the group consisting of O, S, Se, NR3, S(O), S(O)2, CR4R5 and C(O); R1, R2, R3, R4 and R5 are independently selected from the group consisting of hydrogen, halogen, unsubstituted or substituted alkyl, unsubstituted or substituted alkoxy, unsubstituted or substituted aryl, unsubstituted or substituted aryloxy, unsubstituted or substituted heteroaryl, and unsubstituted or substituted heteroaryloxy; and n is an integer greater than 0.