MIXED-HALIDE PEROVSKITES

Shining more light on photoinduced segregation

Light is known to induce segregation of iodine and bromine in mixed-halide perovskites. Counterintuitively, it is now shown that irradiation at higher intensity reverses this process, leading to halide remixing.

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Fig. 1: Excitation intensity-driven halide remixing in perovskite microcrystals.

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Correspondence to Masaru Kuno.

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Kuno, M. Shining more light on photoinduced segregation. Nat. Mater. (2020). https://doi.org/10.1038/s41563-020-00830-2

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