Nature Communications (Jan 2021)

Single-layered organic photovoltaics with double cascading charge transport pathways: 18% efficiencies

  • Ming Zhang,
  • Lei Zhu,
  • Guanqing Zhou,
  • Tianyu Hao,
  • Chaoqun Qiu,
  • Zhe Zhao,
  • Qin Hu,
  • Bryon W. Larson,
  • Haiming Zhu,
  • Zaifei Ma,
  • Zheng Tang,
  • Wei Feng,
  • Yongming Zhang,
  • Thomas P. Russell,
  • Feng Liu

DOI
https://doi.org/10.1038/s41467-020-20580-8
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 10

Abstract

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Efficiency of organic solar cells is determined by the physical properties of donors and acceptors in bulk heterojunction film. The authors optimise quaternary blends to realize a double cascading energy level alignment enabling efficient carrier dissociation and transport, achieving 18% efficiency.