Nature Communications (Nov 2021)

Increasing donor-acceptor spacing for reduced voltage loss in organic solar cells

  • Jing Wang,
  • Xudong Jiang,
  • Hongbo Wu,
  • Guitao Feng,
  • Hanyu Wu,
  • Junyu Li,
  • Yuanping Yi,
  • Xunda Feng,
  • Zaifei Ma,
  • Weiwei Li,
  • Koen Vandewal,
  • Zheng Tang

DOI
https://doi.org/10.1038/s41467-021-26995-1
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 9

Abstract

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Complex morphology in donor/acceptor organic heterostructures hampers the understanding of device performance. Here, the origin of the high voltage loss in organic solar cells is ascribed to the too small spacing between the donor/acceptor molecules in the active layer, and the voltage loss can be reduced by increasing the donor/acceptor spacing.