Abstract:
Dynamic disorder in metal halide perovskites is driven by thermal structural fluctuations of cross-linked octahedra leading to a broadband central peak in the low-frequency region of electronic Raman scattering spectrum. In this work, a temperature dependence of the Raman central peak in metal halide perovskite CsPbBr$_3$ is experimentally demonstrated. The results of this study hold promise for the development of edge-cutting remote temperature sensors.
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