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CsPbI3, with its excellent chemical stability, possesses a suitable bandgap for single‐junction and tandem solar cells, yet the poor phase stability hinders its application. In article 2000186, Wan‐Jian Yin, Wallace C. H. Choy, and co‐workers reveal the nature of the photoactive CsPbI3 phase transition from the perspective of PbI6 octahedral rotation and develop a facile method to simultaneously stabilize...
CsPbI3 inorganic perovskite has exhibited some special properties particularly crystal structure distortion and quantum confinement effect, yet the poor phase stability of CsPbI3 severely hinders its applications. Herein, the nature of the photoactive CsPbI3 phase transition from the perspective of PbI6 octahedra is revealed. A facile method is also developed to stabilize the photoactive phase and...
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