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Photostability of Perovskite Solar Cells: Challenges and Strategies
Ruohan Liu1, Runnan Yu1, Zhan'ao Tan1
1Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
Nanomaterials (Basel, Switzerland)
|June 11, 2025
Summary
Perovskite solar cells (PSCs) offer efficient energy conversion but degrade under UV light. This review explores strategies like encapsulation and material tuning to improve their photostability for commercial viability.
Area of Science:
- Photovoltaics
- Materials Science
- Renewable Energy
Background:
- Perovskite solar cells (PSCs) are a promising photovoltaic technology for efficient and cost-effective solar energy.
- Commercialization is hindered by stability issues, particularly degradation from humidity, light, and heat.
- Ultraviolet (UV) radiation is a significant factor causing perovskite material degradation.
Purpose of the Study:
- To review challenges and strategies for enhancing the photostability of PSCs.
- To focus on solutions addressing UV-induced degradation in perovskite solar cells.
- To provide an outlook on future research and development in PSC UV stability.
Main Methods:
- Categorization of strategies into external protection and internal optimization.
- Review of UV-blocking encapsulation technologies for external protection.
- Analysis of internal optimization methods including compositional tuning, additives, interface engineering, and charge transport layer improvements.
Main Results:
- External protection strategies involve UV-blocking encapsulation.
- Internal optimization encompasses compositional tuning, functional additives, interface engineering, and charge transport layer enhancements.
- Various approaches aim to mitigate UV-induced degradation in PSCs.
Conclusions:
- Addressing UV stability is critical for the commercialization of PSCs.
- A combination of external and internal strategies is necessary for robust photostability.
- Further research is needed to overcome key scientific and technological challenges in PSC UV stability.
