fig11
Figure 11. Relative Pb-X expansion of MAPbI3 from Schuck et al.[6] (red) and MAPbBr3 (Weadock et al.[7]) (blue). Positive bond expansion ΔREXAFS (solid upward triangles) and negative tension effect (solid downward triangles) result in the overall crystallographic expansion ΔRXRD (open circles). Values for the cubic perovskite phase of MAPbI3 are also given from Whitfield et al.[36] (open red star symbol). Adapted with permission from Schuck et al.[6]. Copyright 2022 American Chemical Society.