The influence of polymer purification on photovoltaic device performance of a series of indacenodithiophene donor polymers.

Ashraf, Raja Shahid; Schroeder, Bob C; Bronstein, Hugo A; Huang, Zhenggang; Thomas, Stuart; Kline, R Joseph; Brabec, Christoph J; Rannou, Patrice et al. · Adv Mater · 2013

basic_science · Level V

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Abstract

A series of low bandgap indacenodithiophene polymers is purified by recycling SEC in order to isolate narrow polydispersity fractions. This additional purification step is found to have a significant beneficial influence on the solar cell performance and the reasons for this performance increase are investigated.

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