Eu^(2+)/Ce^(3+)激活的近紫外LED用发光材料研究进展

Advances in Eu^(2+)/Ce^(3+) Activated Luminescent Materials for N-UV LEDs

作为新一代固态照明光源,白光LED在能量转换效率、亮度、化学稳定性和环保性等多方面显示出突出的性能优势,广泛应用于照明领域。而在其多种白光构筑方式中,“近紫外LED+多色荧光粉”更有利于实现高显色指数和低色温的健康照明,这种方法受到高度关注,高品质多色发光材料的开发和性能调控也是近年来的研究热点。本文主要介绍了Eu^(2+)/Ce^(3+)激活的近紫外LED用发光材料的最新进展,包括商用荧光粉的性能优化和新体系的开发,讨论了材料设计和性能调控的手段。最后,对近紫外LED用发光材料的部分机遇和挑战进行了讨论,从而对白光LED的发展提供一定的参考和指导。

As a new generation of solid-state lighting source,white LED has shown outstanding performance advan⁃tages in energy conversion efficiency,brightness,chemical stability and environmental protection,and is widely used in the lighting field.Among its various white light construction methods,“near ultraviolet LED+multicolor phosphors”is more conducive to the realization of high color rendering index and low color temperature healthy light⁃ing,which has been highly concerned.The development and performance control of high-quality multi-color lumi⁃nous materials is also a research hotspot in recent years.This paper introduces the latest development of Eu^(2+)/Ce^(3+)ac⁃tivated luminescent materials for near ultraviolet LED,including the performance optimization of commercial powder and the development of new system,and discusses the means of material design and performance control.Finally,some opportunities and challenges of luminescent materials for near ultraviolet LED are discussed,This review pro⁃vides reference and guidance for the development of white LED.