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Jun Liu, Hyosung Choi, Jin Young Kim, Chris Bailey, Michael Durstock and Liming Dai Highly Crystalline and Low Bandgap Donor Polymers for Efficient Polymer Solar Cells Advanced Materials 24

Version of Record online: 23 DEC 2011 | DOI: 10.1002/adma.201103623

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A highly crystalline and low bandgap donor polymer, EI-PFDTBT, is developed by inserting ethylene bridging units to ensure a coplanar configuration between the side chains and the main chain. Polymer solar cells based on the EI-PFDTBT and PC71BM blends spincoated at elevated temperatures exhibit a power conversion efficiency of 5.1%.

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