Nature Communications (Aug 2018)

2D perovskite stabilized phase-pure formamidinium perovskite solar cells

  • Jin-Wook Lee,
  • Zhenghong Dai,
  • Tae-Hee Han,
  • Chungseok Choi,
  • Sheng-Yung Chang,
  • Sung-Joon Lee,
  • Nicholas De Marco,
  • Hongxiang Zhao,
  • Pengyu Sun,
  • Yu Huang,
  • Yang Yang

DOI
https://doi.org/10.1038/s41467-018-05454-4
Journal volume & issue
Vol. 9, no. 1
pp. 1 – 10

Abstract

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Utilizing mixed-cation-halide can improve stability of the formamidinium perovskite films and devices but sacrifices the photocurrent due to an increase in bandgap. Here Lee et al. introduced small amounts of 2D perovskite to obtain high efficiency and stability based on phase-pure formamidinium based perovskite.