The influence of polymer purification on photovoltaic device performance of a series of indacenodithiophene donor polymers
R.S. Ashraf, B.C. Schroeder, H.A. Bronstein, Z. Huang, S. Thomas, R.J. Kline, C.J. Brabec, P. Rannou, T.D. Anthopoulos, J.R. Durrant, I. McCulloch
Adv. Mater., 25, 2029-2034, (2013)
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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