Nano-Micro Letters (Apr 2023)

Efficient Semi-Transparent Wide-Bandgap Perovskite Solar Cells Enabled by Pure-Chloride 2D-Perovskite Passivation

  • Liu Yang,
  • Yongbin Jin,
  • Zheng Fang,
  • Jinyan Zhang,
  • Ziang Nan,
  • Lingfang Zheng,
  • Huihu Zhuang,
  • Qinghua Zeng,
  • Kaikai Liu,
  • Bingru Deng,
  • Huiping Feng,
  • Yujie Luo,
  • Chengbo Tian,
  • Changcai Cui,
  • Liqiang Xie,
  • Xipeng Xu,
  • Zhanhua Wei

DOI
https://doi.org/10.1007/s40820-023-01090-w
Journal volume & issue
Vol. 15, no. 1
pp. 1 – 14

Abstract

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Highlights Three bulky cation chlorides (PMACl, PEACl and NMACl) are used to modify the perovskite surface and form pure-anion 2D (PMA)2PbCl4, mixed-anion 2D (PEA)2Pb(I x Cl4-x ), and non-2D NMAI passivation layers, respectively. Intermolecular interactions between the bulky cations and the strength of cation-halide hydrogen bonds are critical to forming the three distinct passivation layers. Semi-transparent wide-bandgap perovskite solar cells (WBG-PSCs) with ITO as the back electrode show hysteresis-free PCE of 18.60% and V OC deficit of 0.49 V.

Keywords