Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 4, Issue 27, Pages 10409-10413Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ta04358e
Keywords
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Funding
- MoST [2014CB643502]
- NSFC [51373078, 51422304, 91433101]
- PCSIRT [IRT1257]
- Tianjin city [13RCGFGX01121]
- Polymer-Based Materials for Harvesting Solar Energy (PhaSE), an Energy Frontier Research Center - U.S. Department of Energy, Office of Basic Energy Sciences [DE-SC0001087]
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A simple small molecule acceptor named DICTF, with fluorene as the central block and 2-(2,3-dihydro-3-oxo-1H-inden-1-ylidene) propanedinitrile as the end-capping groups, has been designed for fullerene-free organic solar cells. The new molecule was synthesized from widely available and inexpensive commercial materials in only three steps with a high overall yield of similar to 60%. Fullerene-free organic solar cells with DICTF as the acceptor material provide a high PCE of 7.93%.
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