fig9
Figure 9. Results of the PDF analysis by Bernasconi et al.[16] using the G(r) range 1-10 Å with orthorhombic Pnma symmetry. (A) orthorhombic perovskite structure at 200 K; (B) orthorhombic lattice constants (pseudo-cubic); (C) averaged Pb-Br bond lengths expansion and (D) volumetric expansion of MAPbBr3. Adapted with permission from Bernasconi et al.[16]. Copyright 2017 American Chemical Society.
