无机钙钛矿白光LED及可见光通信研究进展（特邀）

在现代社会中，白光发光二极管（LED）在照明和显示背板等诸多领域都有着重要的基础性作用。为了获得具有优异性能的白光LED，首先需要获得满足白光LED发光需要的高性能的发光材料。而作为一类新兴的半导体材料，无机钙钛矿（CsPbX₃, X = Cl, Br, I）由于其具有的高发光量子产率、发光波长可调、色纯度高和稳定性好等优点，在发光应用特别是白光LED领域展现出了巨大的潜力。文中将首先分别从光致白光LED和电致白光LED两个方面出发，综述近期在基于无机钙钛矿的白光LED方面所取得的研究进展，随后分别介绍以上两个体系中改性后的无机钙钛矿发光材料与其他发光材料复合形成白光以及无机钙钛矿单组分白光的代表性成果。最后，对钙钛矿白光LED在可见光通信方面所取得的最新进展进行介绍，并且对白光LED以及可见光通信的研究发展趋势与挑战进行了总结和展望。

Research progress in inorganic perovskites white LEDs and visible light communication (Invited)

In the modern world, the white light-emitting diodes (LEDs) play an important and basic role on various fields, including illumination and display back board. To obtain excellent performance white LEDs, the emissive materials needed to be studied. As a kind of promising semiconductor, inorganic perovskites (CsPbX₃, X=Cl, Br, I) exhibit prominent potentials in the white LEDs, due to their high photoluminescence quantum yields, tunable emission wavelength, high color purity and excellent stability. In this review, the research progresses in the electroluminescent and photoluminescent white LEDs based on inorganic perovskites were introduced. Then, the represent achievements on the white LEDs of the mix of improved inorganic perovskites and other emissive materials, as well as the single components of inorganic perovskites, could be exhibited. In the end, the employment of the white LEDs on visible light communication was highlighted. In addition, the development trends of the white LEDs and visible light communication were summarized and prospected.