无机材料学报 ›› 2019, Vol. 34 ›› Issue (11): 1145-1155.DOI: 10.15541/jim20190045

• 综述 • 上一篇    下一篇

单基质白光LED荧光粉研究进展

曹逊,曹翠翠,孙光耀,金平实   

  1. 中国科学院 上海硅酸盐研究所, 高性能陶瓷和超微结构国家重点实验室, 上海 200050
  • 收稿日期:2019-01-25 修回日期:2019-03-18 出版日期:2019-11-20 发布日期:2019-05-29
  • 作者简介:曹 逊(1983-), 男, 副研究员. E-mail: cxun@mail.sic.ac.cn
  • 基金资助:
    中科院青年创新促进会人才支持计划(2018288);上海市浦江人才(18PJD051);高性能陶瓷和超微结构国家重点实验室青年基金(SKL201703)

Recent Progress of Single-phase White Light-emitting Diodes Phosphors

CAO Xun,CAO Cui-Cui,SUN Guang-Yao,JIN Ping-Shi   

  1. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
  • Received:2019-01-25 Revised:2019-03-18 Online:2019-11-20 Published:2019-05-29
  • Supported by:
    The Youth Innovation Promotion Association, Chinese Academy of Sciences(2018288);The Shanghai Pujiang Program(18PJD051);The Science Foundation for Youth Scholar of State Key Laboratory of High-Performance Ceramics and Superfine Microstructures(SKL201703)

摘要:

白光LEDs(White Light-Emitting Diodes, WLEDs)作为一种新型的固体照明光源, 相对于已有光源(白炽灯、荧光灯等)具有发光效率高、响应速度快、寿命长等优势, 在照明和显示领域有着广阔的应用前景。目前获取WLEDs最常用的方法是蓝光LED芯片激发YAG : Ce 3+黄光荧光粉以及紫外-近紫外芯片激发三基色荧光粉(RGB混合荧光粉), 相比于以上两种方式, 单基质WLEDs荧光粉由于能克服传统RGB荧光粉颜色再吸收及配比调控的问题, 获得较高的流明效率及较高色彩还原性而受到越来越多的关注。目前关于单基质白光荧光的研究已有大量文献报道, 涉及多种材料体系, 按照发光原理的不同, 可以将其地简单分为单离子激发体系、多离子激发体系以及不依赖于稀土离子发光的其他体系等。本文综述了单基质WLEDs荧光粉的研究进展, 指出了其发展中存在的问题, 并对未来发展趋势作了展望。

关键词: WLEDs, 单基质, 白光荧光粉, 综述

Abstract:

As a new solid-state lighting source, the white light-emitting diodes (WLEDs) have a greatly promising application in the field of lighting and display. They have superior advantages of high luminous efficacy, fast response speed and long service life, etc. compared with the existing light sources (incandescent lamps, fluorescent lamps, etc.). At present the WLEDs are commonly fabricated by combination of a blue LED chip and YAG: Ce 3+ yellow-emitting phosphor, and combination of a ultraviolet-near ultraviolet excitation chip and red-green-blue (RGB) emitting color phosphors, compared with the above two phosphors, the single-phase phosphors containing white emission have the advantages of a higher luminous efficacy, color rendering. Meanwhile, the single-phase phosphors may effectively solve the reabsorption problem existing in RGB phosphors. There have been a large number of reports on the research of single-phase phosphors, involving a variety of material systems. According to the principle of luminescence, it can be simply divided into three groups: single ion doped system, multi-ion doped system and other systems which do not rely on rare earth ion to light. This paper reviews the research progress of single-matrix WLEDs phosphors, and points out the problems in their development, and forecasts the future development trend.

Key words: WLEDs, single phase, white light emitting phosphor, review

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