Abstract
Halide perovskites are a new class of semiconductors showing an incredible set of physical properties wellsuited for a large range of opto-electronic applications. These physical properties can be easily tuned and adapted to the intended application by modifying the composition and the size of the material. Additionally, these materials are solution-processed at low temperature and ambient pressure, and contain earth-abundant elements. However, some important challenges remain: the presence of lead and the stability. In this paper, we present some outlines of these materials in several fields of opto-electronics, i. e. photovoltaics and light-emitting devices, such as LEDs, single-photon sources, lasers, and photonics.
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