全光谱照明LED中的蓝绿色荧光粉研究

符义兵; 何锦华; 梁超; 滕晓明; 徐俊峰

doi:10.3788/fgxb20183909.1220

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全光谱照明LED中的蓝绿色荧光粉研究

材料合成及性能 | 更新时间：2020-08-12

- 全光谱照明LED中的蓝绿色荧光粉研究
- Blue-green Phosphors in Full Spectrum Lighting LEDs
- 发光学报 2018年39卷第9期页码：1220-1224
- 作者机构：
  
  江苏博睿光电有限公司,江苏南京,211103
- 作者简介：
- 基金信息：
  
  江苏省重点研发计划（BE2017036）资助项目()
- DOI：10.3788/fgxb20183909.1220
  中图分类号： O482.31
- 纸质出版日期：2018-9-5，
  
  网络出版日期：2018-5-3，
  
  收稿日期：2017-12-10，
  
  修回日期：2018-4-16，
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符义兵, 何锦华, 梁超等. 全光谱照明LED中的蓝绿色荧光粉研究[J]. 发光学报, 2018,39(9): 1220-1224

FU Yi-bing, HE Jin-hua, LIANG Chao etc. Blue-green Phosphors in Full Spectrum Lighting LEDs[J]. Chinese Journal of Luminescence, 2018,39(9): 1220-1224
符义兵, 何锦华, 梁超等. 全光谱照明LED中的蓝绿色荧光粉研究[J]. 发光学报, 2018,39(9): 1220-1224 DOI： 10.3788/fgxb20183909.1220.

FU Yi-bing, HE Jin-hua, LIANG Chao etc. Blue-green Phosphors in Full Spectrum Lighting LEDs[J]. Chinese Journal of Luminescence, 2018,39(9): 1220-1224 DOI： 10.3788/fgxb20183909.1220.

摘要

采用高温固相法合成了BaSi

:Eu

蓝绿色荧光粉，在440~460 nm蓝光激发下，该荧光粉发射峰值波长488 nm的蓝绿色光。通过共掺杂微量Mg

和Ge

离子，BaSi

:Eu

蓝绿色荧光粉的热猝灭性能显著提升。在蓝光芯片激发下，使用BaSi

:Eu

蓝绿色荧光粉搭配Y

（Al，Ga）

:Ce

黄绿色荧光粉以及CaAlSiN

:Eu

红色荧光粉，可以封装色温6 500 K、显色指数Ra达到96.5、所有特殊显色指数R1~R15都大于90的全光谱白光LED。通过封装老化测试，Mg

和Ge

离子掺杂的BaSi

:Eu

蓝绿色荧光粉较未掺杂的荧光粉老化性能提升近1倍。

Abstract

BaSi

:Eu

blue-green phosphor was synthesized by high temperature solid-state method. Under the excitation of blue light

BaSi

:Eu

phosphor emits blue-green light with peak wavelength at 488 nm. Co-doped with Mg

and Ge

ions

the thermal quenching property of BaSi

:Eu

was significantly improved

which helps to improve the aging performance of WLED. By using BaSi

:Eu

blue-green phosphor

(Al

Ga)

:Ce

yellow-green phosphor and CaAlSiN

:Eu

red phosphors

the Ra of the blue-chip based WLED reaches 96.5

and all the special color rendering indices (R1-R15) of the WLED are over 90

which meet the requirements of full spectrum WLED lighting.

关键词

蓝绿色荧光粉白光LED全光谱显色指数

Keywords

blue-green phosphorwhite LEDfull spectrumcolor rending index

references

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