Photostability of Perovskite Solar Cells: Unraveling Photostability of Mixed Cation Perovskite Films in Extreme Environment (Advanced Optical Materials 20/2018)

The cationic compositional engineered perovskites undergo severe degradation under illumination in ultrahigh vacuum (UHV) environment. As shown by Jianxin Tang, Qinye Bao and co-workers in article number 1800262, UHV environment remarkably accelerates the degradation, which delivers the important message that current hybrid perovskite materials and their optoelectronic devices are not suitable for application in outer space (e.g. satellites and probes).