Decoupling light- and oxygen-induced degradation mechanisms of Sn-Pb perovskites in all perovskite tandem solar cells

Efficiencies of all-perovskite tandem solar cells are dominantly constrained by the challenges pertaining to defects and stability within tin-lead (Sn-Pb) perovskite sub-cells. On top of the well-studied oxygen oxidation, defects related to iodide and the consequent generation of I 2 upon light illu...

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