This research demonstrates that CsTFA reduces Sn2+ oxidation and enhances performance in tin-based perovskite solar cells, suggesting a new additive strategy.
Cesium trifluoroacetate (CsTFA) as an antioxidant additive suppresses Sn 2+ oxidation, passivates intrinsic defects and alleviates the p-type self-doping effect. This strategy enhances the efficiency and stability of tin-based perovskite solar cells.
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Wang et al. (2025) studied this question.
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