POLYMERS CONTAINING 3'-(ALKOXY)-2,2'-BITHIOPHENE-3CARBONITRILE FOR HIGH PERFORMANCE ORGANIC PHOTOVOLTAICS

摘要

A novel AB-type copolymer for use in organic photovoltaics. The AB-type copolymer comprises a unit A, where the unit A is Formula (I), where R₁ is a carbon chain from about 1 to about 30 units and where Y is selected from CN, F and Cl. The B unit of the AB-type copolymer is selected from is selected from: Formula (II) wherein X₁, X₂, X₃, and X₄ are independently selected from the group consisting of: H, Cl, F, CN, alkyl, alkylthiol, alkoxy, ester, ketone, amide and aryl groups.