Nano-Micro Letters (Apr 2023)

Antimony Potassium Tartrate Stabilizes Wide-Bandgap Perovskites for Inverted 4-T All-Perovskite Tandem Solar Cells with Efficiencies over 26%

  • Xuzhi Hu,
  • Jiashuai Li,
  • Chen Wang,
  • Hongsen Cui,
  • Yongjie Liu,
  • Shun Zhou,
  • Hongling Guan,
  • Weijun Ke,
  • Chen Tao,
  • Guojia Fang

DOI
https://doi.org/10.1007/s40820-023-01078-6
Journal volume & issue
Vol. 15, no. 1
pp. 1 – 14

Abstract

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Highlights A versatile material-antimony potassium tartrate is added to wide-bandgap perovskite cells for the first time. Inverted wide-bandgap perovskite solar cells with a structure of ITO/MeO-2PACz/perovskite/C60/ALD-SnO2/Cu yield a champion power conversion efficiency of 20.35%. A perovskite/perovskite four-terminal tandem solar cell with efficiency of 26.3% is achieved.

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