Research / 2021 / Article / Fig 5

Research Article

Stable and Efficient Red Perovskite Light-Emitting Diodes Based on Ca2+-Doped CsPbI3 Nanocrystals

Figure 5

(a–d) XRD pattern evolution for Ca2+-doped CsPbI3 films in ambient condition (40−50% RH at ); images of Ca2+-doped CsPbI3 films under daylight (e) and under UV light (f) before and after 58-day storage in ambient condition.