Abstract:In this work, CH 3 NH 3 PbI 3 perovskite thin films were deposited by the spray-coating method in ambient conditions using different deposition temperatures and annealing times. They were then exposed to high humidity in order to investigate the relation between processing parameters and degradation mechanisms. FTIR and XRD analyses identified two degradation mechanisms, one reversible, the formation of monohydrated perovskite, CH 3 NH 3 PbI 3 •H 2 O, and another irreversible, the decomposition of perovskite i… Show more
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