The commercial use of perovskite solar cells is inhibited by their poor stability. Incorporating ionic liquids into perovskites helps to overcome this challenge, enabling the development of solar cells with 25.9% efficiency that retain 90% of their initial performance for over 1,500 hours under continuous 1-sun illumination and temperatures of 90°C.
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References
Best research-cell efficiencies. NREL https://www.nrel.gov/pv/cell-efficiency (accessed October 2025). This website aggregates certified efficiency data for various photovoltaic devices.
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This is a summary of: Xu, W. et al. Ionic liquids improve the long-term stability of perovskite solar cells. Nat. Energy https://doi.org/10.1038/s41560-025-01906-6 (2025).
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Designing ionic liquid additives to increase the stability of perovskite solar cells. Nat Energy (2025). https://doi.org/10.1038/s41560-025-01930-6
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DOI: https://doi.org/10.1038/s41560-025-01930-6
