Towards Long‐Term Stable Perovskite Solar Cells: Degradation Mechanisms and Stabilization Techniques

It is certain that perovskite materials must be a game‐changer in the solar industry as long as their stability reaches a level comparable with the lifetime of a commercialized Si photovoltaic. However, the operational stability of perovskite solar cells and modules still remains unresolved, especia...

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Bibliographic Details
Published in:Advanced science 2024-01, Vol.11 (4), p.e2306110-n/a
Main Authors: Ahn, Namyoung, Choi, Mansoo
Format: Article
Language:English
Subjects:
Alternative energy sources
Bias
Chemical reactions
Crystallization
Crystals
Electric fields
Grain boundaries
ion instability
Light
perovskite solar cells
Solvents
stability
trapped charges
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Summary:It is certain that perovskite materials must be a game‐changer in the solar industry as long as their stability reaches a level comparable with the lifetime of a commercialized Si photovoltaic. However, the operational stability of perovskite solar cells and modules still remains unresolved, especially when devices operate in practical energy‐harvesting modes represented by maximum power point tracking under 1 sun illumination at ambient conditions. This review article covers from fundamental aspects of perovskite instability including chemical decomposition pathways under light soaking and electrical bias, to recent advances and techniques that effectively prevent such degradation of perovskite solar cells and modules. In particular, fundamental causes for permanent degradation due to ion migration and trapped charges are overviewed and explain their interplay between ions and charges. Based on the degradation mechanism, recent advances on the strategies are discussed to slow down the degradation during operation for a practical use of perovskite‐based solar devices. The operational stability of perovskite solar cells and modules is a key challenge which still remain unresolved. This review article discusses fundamentals of perovskite degradation due to different stresses including air molecules, light illumination, and electrical bias. The operational stability of these devices and recent advances to stabilize devices are overviewed on a way toward commercialization of perovskite solar devices.
ISSN:2198-3844
2198-3844
DOI:10.1002/advs.202306110