Solid-state perovskite solar cells have recently emerged and have already reached efficiencies of 20%. Now, a simple solution-processing step that crosslinks neighbouring perovskite grain surfaces has been found to increase their stability, an important issue for future potential commercialization.
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Sun, L. Crystal crosslinking. Nature Chem 7, 684–685 (2015). https://doi.org/10.1038/nchem.2323
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