A Review on Buried Interface of Perovskite Solar Cells

Yu Pu, Haijun Su (), Congcong Liu, Min Guo, Lin Liu and Hengzhi Fu
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Yu Pu: State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China
Haijun Su: State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China
Congcong Liu: State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China
Min Guo: State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China
Lin Liu: State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China
Hengzhi Fu: State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China

Energies, 2023, vol. 16, issue 13, 1-30

Abstract: Perovskite solar cells (PSCs) have been developed rapidly in recent years because of their excellent photoelectric performance. However, interfacial non-radiative recombination hinders the improvement of device performance. The buried interface modification strategy can minimize the non-radiation recombination in the interface and can obtain the high efficiency and stability of PSCs. In this review, we introduce the device structure and the charge carrier dynamics (charge transfer, extraction, and collection) at the interface. We further summarize the main sources of non-radiative recombination at the interface, such as energy alignment mismatch and interface defects, and methods to characterize them. In contrast to the previous review of perovskite solar cells, the important roles of buried interfaces in regulating energy level alignment, passivating surface defects, modulating morphology, and so on are reviewed in detail based on the latest research, and strategies for reducing interfacial nonradiative recombination are provided. In the end, the potential development and challenges of buried interfaces for high-performance and stable PSCs are presented.

Keywords: perovskite solar cells (PSCs); buried interface; interfacial non-radiative recombination; interface defects; energy level alignment; modulating morphology (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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