Interfacial stabilization for inverted perovskite solar cells with long-term stability

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Wei Chen
  • Bing Han
  • Qin Hu
  • Meng Gu
  • Yudong Zhu
  • Wenqiang Yang
  • Yecheng Zhou
  • Deying Luo
  • Fang-Zhou Liu
  • Rui Cheng
  • Rui Zhu
  • Aleksandra B. Djurišić
  • Thomas P. Russell
  • Zhubing He

Detail(s)

Original languageEnglish
Pages (from-to)991-1002
Journal / PublicationScience Bulletin
Volume66
Issue number10
Online published25 Feb 2021
Publication statusPublished - 30 May 2021
Externally publishedYes

Abstract

Perovskite solar cells (PSCs) commonly exhibit significant performance degradation due to ion migration through the top charge transport layer and ultimately metal electrode corrosion. Here, we demonstrate an interfacial management strategy using a boron chloride subphthalocyanine (Cl6SubPc)/fullerene electron-transport layer, which not only passivates the interfacial defects in the perovskite, but also suppresses halide diffusion as evidenced by multiple techniques, including visual element mapping by electron energy loss spectroscopy. As a result, we obtain inverted PSCs with an efficiency of 22.0% (21.3% certified), shelf life of 7000 h, T80 of 816 h under damp heat stress (compared to less than 20 h without Cl6SubPc), and initial performance retention of 98% after 2000 h at 80 °C in inert environment, 90% after 2034 h of illumination and maximum power point tracking in ambient for encapsulated devices and 95% after 1272 h outdoor testing ISOS-O-1. Our strategy and results pave a new way to move PSCs forward to their potential commercialization solidly.

Research Area(s)

  • Halide ions diffusion, Interfacial stabilization, Inverted perovskite solar cells, Long-term stability, NiO

Citation Format(s)

Interfacial stabilization for inverted perovskite solar cells with long-term stability. / Chen, Wei; Han, Bing; Hu, Qin; Gu, Meng; Zhu, Yudong; Yang, Wenqiang; Zhou, Yecheng; Luo, Deying; Liu, Fang-Zhou; Cheng, Rui; Zhu, Rui; Feng, Shien-Ping; Djurišić, Aleksandra B.; Russell, Thomas P.; He, Zhubing.

In: Science Bulletin, Vol. 66, No. 10, 30.05.2021, p. 991-1002.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review