Figure 3
In-situ 2D GIWAXD patterns of MAPbI3 perovskite films determined under different thermal conditions. (a) Pristine MAPbI3, MAPbI3 exposed to (b) 80 °C for 20 min, (c) 100 °C for 20 min, and (d) 130 °C for 20 min. (e) Cartoon representation of the degradation progress in MAPbI3 perovskite materials.
