Metal halide perovskites

Perovskite-based photovoltaic devices are making their way from laboratory to market, while progress in the synthesis of colloidal lead-halide perovskite nanocrystals will have impact on a broad range of applications, from displays to single photon emitters. In this Focus issue, we overview recent developments in fundamental and applied research on metal halide perovskite materials, and host a discussion on the open questions regarding the mechanisms leading to the unique behaviour of these materials.

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