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Energy Materials and Devices 2024, 2(1): 9370031 https://doi.org/10.26599/EMD.2024.9370031
Review | Open Access | Issue | Published: 28 March 2024

Interface engineering of inverted wide-bandgap perovskite solar cells for tandem photovoltaics

Show Author's Information Yang Yang,†,  Fengyuan Li†,,  Ruihao Chen( ),  Hongqiang Wang( )
State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Labortary of Graphene, Xi’an 710072, China

† Yang Yang and Fengyuan Li contributed equally to this work.

Keywords:
surface modification, wide-bandgap perovskite, inverted perovskite solar cells, buried interface engineering
Cite this article:
Yang Y, Li F, Chen R, et al. Interface engineering of inverted wide-bandgap perovskite solar cells for tandem photovoltaics. Energy Materials and Devices, 2024, 2(1): 9370031. https://doi.org/10.26599/EMD.2024.9370031
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Abstract Full text About this article

Wide-bandgap perovskite solar cells (WBG PSCs) have garnered significant research attention for their potential in tandem solar cells. However, they face challenges such as high open-circuit voltage losses and severe phase instability. These issues are primarily owing to the formation of defects, ion migration, and energy level mismatches at the interface of WBG perovskite devices. Meanwhile, inverted PSCs demonstrate superior stability potential and compatibility with tandem devices, making them the most promising application for WBG perovskite materials. Consequently, interface modulation for such devices has become imperative. In this review, from the perspective of applicability in tandem devices, we first provided a concise overview of WBG perovskite research and its efficiency progress in inverted devices. We further discussed interface carrier dynamics and the potential impact of interfaces on such device performance. Afterward, we presented a comprehensive summary of interface engineering in inverted WBG perovskite (1.60 eV–1.80 eV) solar cells. The research particularly explored both the upper and buried interfaces of WBG absorbers in the inverted PSCs, thoroughly investigating interface design strategies and outlining promising research directions. Finally, this review provides insight into the future development of interface engineering for high-performance and large-area WBG PSCs.


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About this article

Interface engineering of inverted wide-bandgap perovskite solar cells for tandem photovoltaics

Show Author's information Yang Yang,†, Fengyuan Li†,, Ruihao Chen( ), Hongqiang Wang( )
State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Labortary of Graphene, Xi’an 710072, China

† Yang Yang and Fengyuan Li contributed equally to this work.

Abstract

Wide-bandgap perovskite solar cells (WBG PSCs) have garnered significant research attention for their potential in tandem solar cells. However, they face challenges such as high open-circuit voltage losses and severe phase instability. These issues are primarily owing to the formation of defects, ion migration, and energy level mismatches at the interface of WBG perovskite devices. Meanwhile, inverted PSCs demonstrate superior stability potential and compatibility with tandem devices, making them the most promising application for WBG perovskite materials. Consequently, interface modulation for such devices has become imperative. In this review, from the perspective of applicability in tandem devices, we first provided a concise overview of WBG perovskite research and its efficiency progress in inverted devices. We further discussed interface carrier dynamics and the potential impact of interfaces on such device performance. Afterward, we presented a comprehensive summary of interface engineering in inverted WBG perovskite (1.60 eV–1.80 eV) solar cells. The research particularly explored both the upper and buried interfaces of WBG absorbers in the inverted PSCs, thoroughly investigating interface design strategies and outlining promising research directions. Finally, this review provides insight into the future development of interface engineering for high-performance and large-area WBG PSCs.

Keywords: surface modification, wide-bandgap perovskite, inverted perovskite solar cells, buried interface engineering

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Publication history

Received: 20 February 2024
Revised: 06 March 2024
Accepted: 08 March 2024
Published: 28 March 2024
Issue date: March 2024

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© The Author(s) 2024. Published by Tsinghua University Press.

Acknowledgements

Acknowledgements

This work was financially supported by the National Natural Science Foundation of China (Grant Nos. 22375163, 52203338, 52172101, 52103286); the Shaanxi Science and Technology Innovation Team (Grant No. 2023-CX-TD-44); Shaanxi Key R&D Program (Grant No. 2022KWZ-07); and Shccig-Qinling Program.

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