Fig. 4: Atomic-scale imaging of the decomposition pathway. | Nature Communications

Fig. 4: Atomic-scale imaging of the decomposition pathway.

From: Atomic-scale imaging of CH3NH3PbI3 structure and its decomposition pathway

Fig. 4: Atomic-scale imaging of the decomposition pathway.The alternative text for this image may have been generated using AI.

a–d HRTEM images with increased doses during the degradation into PbI2. The corresponding doses are marked on each panel. Scale bar, 2 Å. e Atomic structure of MA0.5PbI3. Black squares indicate \({{{\mbox{V}}}}_{{{\mbox{MA}}}}^{-}\). f Atomic structures to illustrate two kinds of I− and Pb2+ diffusion. Left panel shows I− and Pb2+ diffusing to \({{{\mbox{V}}}}_{{{\mbox{MA}}}}^{-}\) while the right panel illustrates the [PbI6]4− octahedron slipping from corner sharing to edge sharing. g Atomic structure of PbI2.

Back to article page