The past two years have witnessed heightened interest in metal-halide perovskites as promising optoelectronic materials for solid-state light emitting applications beyond photovoltaics. Metal-halide perovskites are low-cost solution-processable materials with excellent intrinsic properties such as broad tunability of bandgap, defect tolerance, high photoluminescence quantum efficiency and high emission color purity (narrow full-width at half maximum). In this review, the photophysical properties of hybrid perovskites, which relates with light-emission, such as broad tunability, nature of the recombination processes and quantum efficiency are examined. The prospects of hybrid perovskite light-emitting diodes and lasers, and their key challenges are also discussed.

中文翻译：

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适用于固态发光应用的可广泛调谐的金属卤化物钙钛矿

在过去的两年中，人们对金属卤化物钙钛矿越来越感兴趣，因为钙钛矿是有前景的光电材料，可用于光伏以外的固态发光应用。金属卤化物钙钛矿是一种低成本的溶液可加工材料，具有出色的固有特性，例如，带隙的可调性广，缺陷容限大，光致发光量子效率高，发射色纯度高（半高宽度较窄）。在这篇综述中，研究了与发光有关的杂化钙钛矿的光物理性质，如广泛的可调性，重组过程的性质和量子效率。还讨论了混合钙钛矿发光二极管和激光器的前景，以及它们的主要挑战。