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Strategies for enhancing the stability of metal halide perovskite towards robust solar cells

面向高稳定性太阳能电池开发的卤化物钙钛矿稳定 性提升策略

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Abstract

Perovskite is rising as the most promising material for the next generation of solar cells, due to its high efficiency, low cost, and convenient fabrication. However, the stability of perovskite solar cells remains to be a challenge towards large-scale application. Perovskite materials play a key role in improving the stability of PSCs, and tremendous efforts have been committed to stabilizing the perovskite materials, including composition regulation, crystallization control, and interface optimization. Herein we review the state-of-the-art strategies to improve the stability of perovskite layers in PSCs, and important strategies are highlighted. We analyze in-depth the influence of each site ion on perovskite structural stability and summarize the important progress of these structures showing superior stability. We then summarize the use of additives to regulate perovskite crystallization and defect passivation and elaborate the related mechanisms. Furthermore, the pros and cons of different interface treatment methods used in perovskite solar cells are discussed

摘要

钙钛矿因其高效率、低成本、制造方便等优点, 逐渐成为下一 代太阳能电池最具潜力的材料. 然而, 钙钛矿太阳能电池(PSCs)的稳定 性问题仍然是其实现大规模应用的一个挑战. 钙钛矿材料稳定性的提 升对提高PSCs的稳定性起着至关重要的作用, 近年来, 为了进一步提 升钙钛矿材料的稳定性, 研究人员在其组分调控、结晶控制和界面优 化等方向做了许多尝试. 这篇综述总结了近年来提高PSCs中钙钛矿层 稳定性的策略, 并对一些重要的方法做了重点讨论. 我们深入分析了各 位点离子对钙钛矿结构稳定性的影响, 并对一些稳定性较高的体系的 进展进行了总结, 讨论了添加剂对钙钛矿结晶的调控以及缺陷钝化作 用, 并分析了相关机理. 此外, 我们还详细讨论了目前钙钛矿电池中所 使用的界面处理方法的优势与弊端.

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Acknowledgements

This work was supported by the National Key Research and Development Program of China (2021YFA0715502), the National Natural Science Foundation of China (61935016, 92056119, and 22175118), the Double First-Class Initiative Fund of ShanghaiTech University, and the Science and Technology Commission of Shanghai Municipality (20XD1402500 and 20JC1415800).

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Authors and Affiliations

  1. School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China

    Wei Zhou  (周炜), Ting Pan  (潘婷) & Zhijun Ning  (宁志军)

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  1. Wei Zhou  (周炜)
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  2. Ting Pan  (潘婷)
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  3. Zhijun Ning  (宁志军)
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Contributions

Zhou W, Pan T, and Ning Z proposed the topic and outline of the manuscript. Zhou W collected the related information and wrote the manuscript with support from Ning Z. All authors contributed to the general discussion and revision.

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Correspondence to Zhijun Ning  (宁志军).

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Conflict of interest

The authors declare that they have no conflict of interest.

Wei Zhou is a graduate student at the School of Physical Science and Technology, ShanghaiTech University, under the supervision of Prof. Zhijun Ning. His research focuses on perovskite solar cells.

Zhijun Ning is a tenured associate professor at the School of Physical Science and Technology, ShanghaiTech University. He received his PhD degree from the East China University of Science and Technology in 2009. From 2009 to 2014, he worked as a postdoctoral scholar fellow at the Royal Institute of Technology and the University of Toronto. He joined ShanghaiTech University in 2014. His group focuses on the development of high-performance solution-processed optoelectronic materials and devices.

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Zhou, W., Pan, T. & Ning, Z. Strategies for enhancing the stability of metal halide perovskite towards robust solar cells. Sci. China Mater. 65, 3190–3201 (2022). https://doi.org/10.1007/s40843-022-2277-9

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