Understanding the Instability of the Halide Perovskite CsPbI${}_3$ through Temperature-Dependent Structural Analysis

Daniel B. Straus, Shu Guo, Milinda Abeykoon +1

Despite the tremendous interest in halide perovskites in solar cells, the reason that the all-inorganic perovskite CsPbI${}_3$ is unstable at room temperature remains mysterious. Her…