Aging of absorbent layer of perovskite CH3NH3PbI3 in the local weather of Djelfa region during one year

In this study, we used the spin coating method to elaborated a thin layer of perovskite of the CH
3
NH
3
PbI
3
type under standard conditions, we used XRD and UV-Visible as characterizations to determine the structural and optical properties of this layer and to follow the evolution of structure when it is exposed for a whole of year to the local weather of Djelfa (Algeria). Following elaboration, the sample was immediately placed in a support and left exposed to weather factors in the Djelfa region, the initial analysis was conducted after one day, followed by weekly analyses for a whole year. The results showed a slow deterioration of the structure over year. When compared to other works, the local weather is conducive to the development and even stability of the perovskite for up to a year without protective conditions.