Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 56, Issue 10, Pages 2694-2698Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201612090
Keywords
electron acceptor; perylene bisimides; porphyrins; solar cells
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Funding
- Recruitment Program of Global Youth Experts of China
- National Natural Science Foundation of China [51603209, 21574138, 91633301, 21225209, 91427303]
- Chinese Academy of Sciences [XDB12030200]
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A star-shaped electron acceptor based on porphyrin as a core and perylene bisimide as end groups was constructed for application in non-fullerene organic solar cells. The new conjugated molecule exhibits aligned energy levels, good electron mobility, and complementary absorption with a donor polymer. These advantages facilitate a high power conversion efficiency of 7.4% in non-fullerene solar cells, which represents the highest photovoltaic performance based on porphyrin derivatives as the acceptor.
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