Royal Society of Chemistry, Materials Advances, 21(3), p. 7918-7924, 2022
DOI: 10.1039/d2ma00619g
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This work shows how substitutions to the perovskite lattice at multiple sites can affect iodide ion migration. The triple cation perovskite, Cs0.05(FA0.83MA0.17)0.95Pb(I0.83Br0.17)3, shows a higher barrier to iodide ion migration than materials with only substitutions at the A-site.