Bulk heterojunction solar cells with thick active layers and high fill factors enabled by a bithiophene-co-thiazolothiazole push-pull copolymer

作者: J. Peet , L. Wen , P. Byrne , S. Rodman , K. Forberich

DOI: 10.1063/1.3544940

关键词:

摘要: A push-pull copolymer is presented which can be used in bulk heterojunction (BHJ) solar cells with active layers greater than 200 nm and fill factors above 60%. The efficiencies of most BHJ are limited by the fact that they have between 60 110 nm. While this thickness regime enables peak quantum (EQE) 60%–70%, ability to fabricate thicker devices would increase average EQE values thus device efficiencies. Discovery materials maintain high performance at large thicknesses will enable higher hero commercial viability technology.

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