4.8 Article

High-Efficiency Nonfullerene Polymer Solar Cells with Medium Bandgap Polymer Donor and Narrow Bandgap Organic Semiconductor Acceptor

Journal

ADVANCED MATERIALS
Volume 28, Issue 37, Pages 8288-8295

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201601595

Keywords

extinction coefficients; fluorinated conjugated polymer donors; ITIC; nonfullerene polymer solar cells

Funding

  1. Ministry of Science and Technology of China (973 project) [2014CB643501]
  2. NSFC [91433117, 91333204, 21374124]
  3. Strategic Priority Research Program of the Chinese Academy of Sciences [XDB12030200]
  4. U.S. Office of Naval Research [N00014-15-1-2244]
  5. DOE, Office of Science, and Office of Basic Energy Sciences

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A nonfullerene polymer solar cell with a high efficiency of 9.26% is realized by using benzodithiophene-alt-fluorobenzotriazole copolymer J51 as a medium-bandgap polymer donor and the low-bandgap organic semiconductor ITIC with high extinction coefficients as the acceptor.

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