Fang Mu-Huai, Bao Zhen, Huang Wen-Tse, Liu Ru-Shi
Department of Chemistry, National Taiwan University, Taipei 106, Taiwan.
Chem Rev. 2022 Jul 13;122(13):11474-11513. doi: 10.1021/acs.chemrev.1c00952. Epub 2022 May 22.
Light-emitting diodes (LEDs) are attracting considerable attention around the world. Phosphor materials, as crucial color-converted components, play central roles in LED development. The demands for phosphor materials have become increasingly stringent over the past decades, from high brightness to narrowband emission or function-dependent spectrum engineering. Although substantial progress has been made for currently developed phosphor materials, simultaneously satisfying all requirements for high-level applications remains challenging. In this review, we aim to provide a comprehensive understanding of the development of phosphor materials in different generations and to elucidate the key designed mechanisms concerning the activators and the host structures to fulfill the aforementioned aspects. We highlight the developments in phosphor materials through the classification of demands for high luminescence, high thermal stability, narrowband emission for high color gamut, and broadband emission for near-infrared. We also focus on elucidating the key designed mechanisms of phosphor materials in different generations. Furthermore, future perspectives about micro-LED applications and nanoluminescent materials are provided. This study opens up an avenue for designing the luminescent materials of the future.
发光二极管（LED）在全球范围内正吸引着相当多的关注。磷光体材料作为关键的颜色转换组件，在LED发展中起着核心作用。在过去几十年里，对磷光体材料的要求越来越严格，从高亮度到窄带发射或功能依赖的光谱工程。尽管目前开发的磷光体材料已经取得了很大进展，但同时满足高级应用的所有要求仍然具有挑战性。在这篇综述中，我们旨在全面了解不同代磷光体材料的发展，并阐明有关激活剂和主体结构的关键设计机制，以满足上述各方面的要求。我们通过对高发光、高热稳定性、高色域窄带发射和近红外宽带发射的需求分类，突出了磷光体材料的发展。我们还专注于阐明不同代磷光体材料的关键设计机制。此外，还提供了关于微型LED应用和纳米发光材料的未来展望。这项研究为设计未来的发光材料开辟了一条途径。
