4.8 Article

An Electron Acceptor Challenging Fullerenes for Efficient Polymer Solar Cells

Journal

ADVANCED MATERIALS
Volume 27, Issue 7, Pages 1170-1174

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201404317

Keywords

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Funding

  1. 973 Program [2011CB808401]
  2. National Natural Science Foundation of China [91433114, 21025418, 51261130582]
  3. Chinese Academy of Sciences
  4. Capital Normal University

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A novel non-fullerene electron acceptor (ITIC) that overcomes some of the shortcomings of fullerene acceptors, for example, weak absorption in the visible spectral region and limited energy-level variability, is designed and synthesized. Fullerene-free polymer solar cells (PSCs) based on the ITIC acceptor are demonstrated to exhibit power conversion effi ciencies of up to 6.8%, a record for fullerene-free PSCs.

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