Tin-based perovskite solar cells are less toxic than their lead-based counterparts, but suffer from severe stability issues due to the susceptibility of tin to oxidation. Now, a CsSnI3 perovskite solar cell with a SnCl2 additive is shown to exhibit remarkable stability.
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Shum, K., Tsatskina, A. Solar cells: Stabilizing tin-based perovskites. Nat Energy 1, 16188 (2016). https://doi.org/10.1038/nenergy.2016.188
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DOI: https://doi.org/10.1038/nenergy.2016.188