Optically pumped white light-emitting diodes based on metal halide perovskites and perovskite-related materials
Optically pumped white light-emitting diodes based on metal halide perovskites and perovskite-related materials
复制标题
基于金属卤化物钙钛矿和钙钛矿相关材料的光泵浦白色发光二极管
DOI：
10.1063/1.5140441
复制
发表时间：
2020-01-01
期刊：
影响因子：
6.1
通讯作者：
Ma, Biwu
中科院分区：
文献类型：
--
作者：
Worku, Michael;Xu, Liang-Jin;Ma, Biwu
光泵浦白色发光二极管（WLED）由蓝光/紫外LED芯片和下转换荧光粉组成，在全彩色显示和固态照明等日常生活中有着广泛的应用。虽然在过去二十年中已经在光质量、器件效率和寿命方面取得了显著的进步，但是在光泵浦WLED中仍然存在许多挑战，并且寻找低成本高性能下转换磷光体仍然具有极大的兴趣。最近，金属卤化物钙钛矿因其具有高量子效率和颜色可调谐性的特殊光学性质而成为非常有前途的新一代光发射体，这也激发了研究人员对其衍生物的研究。在这方面，我们简要回顾了在过去几年中的进展，在开发的金属卤化物钙钛矿和钙钛矿相关材料作为光泵浦WLED的下转换荧光粉。我们还强调了一些需要解决的主要问题和挑战，以使钙钛矿基发光体能够取代目前使用的稀土掺杂无机磷光体和量子点。(C)2020年作者。
Optically pumped white light-emitting diodes (WLEDs), consisting of blue/ultraviolet LED chips and down conversion phosphors, have a wide range of applications in our daily life, such as full color display and solid-state lighting. While remarkable progress in light quality, device efficiency, and lifetime has been achieved during the last two decades, many challenges remain in optically pumped WLEDs, and searching for low cost high performance down conversion phosphors is still of great interest. Recently, metal halide perovskites have emerged as a highly promising new generation of light emitters for their exceptional optical properties with high quantum efficiencies and color tunability, which have also inspired researchers to investigate their derivatives. In this perspective, we briefly review the progress during the last few years in the development of metal halide perovskites and perovskite-related materials as down conversion phosphors for optically pumped WLEDs. We also highlight some major issues and challenges that need to be addressed to enable perovskite-based light emitters to possibly replace currently used rare-earth doped inorganic phosphors and quantum dots. (C) 2020 Author(s).