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Huaxing Zhou, Liqiang Yang, Andrew C. Stuart, Samuel C. Price, Dr. Shubin Liu and Prof. Dr. Wei You Development of Fluorinated Benzothiadiazole as a Structural Unit for a Polymer Solar Cell of 7 % Efficiency Angewandte Chemie International Edition 50

Article first published online: 2 MAR 2011 | DOI: 10.1002/anie.201005451

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High-powered polymer: Fluorinated benzothiadiazole was incorporated into a polymer that was used in a high-performance solar cell. The model polymer 2 has decreased HOMO and LUMO energy levels and a similar band gap when compared with its nonfluorinated analogue 1. A bulk heterojunction device derived from 1 demonstrated a high power conversion efficiency of 7.2 % (5.0 % for 1).

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