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Interface passivation strategy improves the efficiency and stability of organic–inorganic hybrid metal halide perovskite solar cells

Published online by Cambridge University Press:  28 August 2020

Zhaoyi Wan
Zhaoyi Wan*
Affiliation:
School of Material Science and Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi710072, China
*
a)e-mail: [email protected]
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Abstract

Recently, organic–inorganic hybrid metal halide perovskite (O-IHMHP) has been diffusely used in solar cells due to its remarkable photoelectric property and inexpensive film-forming process. Since organic–inorganic hybrid metal halide perovskite solar cells (O-IHMHPSCs) were introduced in 2009, their photoelectric conversion efficiency has been increased to 25.2%, and their lifespan has been extended to tens of thousands of hours. However, due to processing factors, defects consist in the interfaces of O-IHMHP with the electron transport layer and the hole transport layer. To improve the stability and property of O-IHMHPSCs, these defects must be addressed; to do so, passivation is commonly applied at the interface. This work reviews research on the interface passivation of O-IHMHPSCs. Here, the passivation mechanisms of different additives on the interface defects of O-IHMHP films are analyzed, their impacts on the stability and property of O-IHMHPSCs are compared, and their roles in O-IHMHPSCs are summarized. Finally, the research and development trends of the defect passivation of O-IHMHPSCs are discussed.

Keywords

organic–inorganic hybrid metal halide perovskite solar cellsdefectinterface passivation strategy
Type
REVIEW
Information
Journal of Materials Research , Volume 35 , Issue 16 , 28 August 2020 , pp. 2166 - 2189
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Copyright © Materials Research Society 2020

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