Journal
ADVANCED MATERIALS
Volume 28, Issue 38, Pages 8490-8498Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201602857
Keywords
asymmetric benzodithiophene; polymer solar cells; power conversion efficiencies
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Funding
- National Natural Science Foundation of China [21274161, 51173199, 51573205, 61107090, 61405209]
- Ministry of Science and Technology of China [2014CB643501, 2010DFA52310]
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Two 1D-2D asymmetric benzodithiophenes (BDTs) as donor building blocks are designed and synthesized, combining the advantages of both 1D and 2D symmetric BDTs. The photovoltaic properties of the asymmetric BDT-based polymers are improved greatly in comparison with corresponding symmetric BDT-based polymers. This work provides a new approach to design prospective organic optoelectronic materials employing the symmetry-breaking strategy.
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