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Review Article

Unveiling the surface-interface properties of perovskite crystals and pivotal regulation strategies

Qin Li1,§, Ziyu Wang1,§, Junjie Ma1( ), Mengqi Han1, Peng Gao1, Meng Cai1, Yiqiang Zhang1( ), Yanlin Song1,2( ), Shou Peng3,4
Henan Institute of Advanced Technology, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences (ICCAS), Beijing 100190, China
China National Building Material Group Co., Ltd., Beijing 100036, China
State Key Laboratory of Advanced Technology for Float Glass, Beijing 100036, China

§ Qin Li and Ziyu Wang contributed equally to this work.

Show Author Information

Graphical Abstract

A unique review logic is employed, which focuses on the physical and chemical properties of perovskite surfaces that have a significant impact on energy loss and structural stability. Surface state reconstruction, dimensional structure construction, and build-in electric field regulation as pivotal strategies for improving the surface-interface properties of perovskite are in-depth analyzed on the basis of theoretical mechanism and technological innovation.

Abstract

Metal-halide perovskite solar cells have garnered significant research attention in the last decade due to their exceptional photovoltaic performance and potential for commercialization. Despite achieving remarkable power conversion efficiency of up to 26.1%, a substantial discrepancy persists when compared to the theoretical Shockley–Queisser (SQ) limit. One of the most serious challenges facing perovskite solar cells is the energy loss incurred during photovoltaic conversion, which affects the SQ limits and stability of the device. More significant than the energy loss occurring in the bulk phase of the perovskite is the energy loss occurring at the surface-interface. Here, we provide a systematic overview of the physical and chemical properties of the surface-interface. Firstly, we delve into the underlying mechanism causing the energy deficit and structural degradation at the surface-interface, aiming to enhance the understanding of carrier transport processes and structural chemical reactivity. Furthermore, we systematically summarized the primary modulating pathways, including surface reconstruction, dimensional construction, and electric-field regulation. Finally, we propose directions for future research to advance the efficiency of perovskite solar cells towards the radiative limit and their widespread commercial application.

Keywords

perovskite solar cellssurface-interface treatmentdefect modificationdimensional designenergy regulationheterojunction and homojunction

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Nano Research
Volume 17 Issue 5,
May 2024
Pages 3950-3981
DOI: 10.1007/s12274-023-6291-9
Cite this article:
Li Q, Wang Z, Ma J, et al. Unveiling the surface-interface properties of perovskite crystals and pivotal regulation strategies. Nano Research, 2024, 17(5): 3950-3981. https://doi.org/10.1007/s12274-023-6291-9
Topics:
Perovskite solar cells

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Received: 17 September 2023
Revised: 25 October 2023
Accepted: 26 October 2023
Published: 29 December 2023
© Tsinghua University Press 2023
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