LED红色发光粉的制备及封装性能

张瑞西; 王海波; 黄如喜; 谢 晔; 林海凤

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LED红色发光粉的制备及封装性能

论文 | 更新时间：2020-08-12

- LED红色发光粉的制备及封装性能
- Preparation and Package Performances of Red Phosphor for LED
- 发光学报 2010年31卷第3期页码：305-310
- 作者机构：
  
  1. 南京工业大学材料化学工程国家重点实验室,江苏南京,210009
  2. 南京工业大学电光源材料研究所, 江苏南京 210015
- 作者简介：
- 基金信息：
- DOI：
  中图分类号： O482.31
- 收稿：2009-07-11，
  
  修回：1900-1-2，
  
  网络出版：2010-06-30，
  
  纸质出版：2010-06-30
- 稿件说明：
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张瑞西;王海波;黄如喜;谢晔;林海凤. LED红色发光粉的制备及封装性能[J]. 发光学报, 2010,31(3): 305-310

ZHANG Rui-xi;WANG Hai-bo;HUANG Ru-xi;XIE Ye;LIN Hai-feng. Preparation and Package Performances of Red Phosphor for LED[J]. 发光学报, 2010,31(3): 305-310
张瑞西;王海波;黄如喜;谢晔;林海凤. LED红色发光粉的制备及封装性能[J]. 发光学报, 2010,31(3): 305-310 DOI：

ZHANG Rui-xi;WANG Hai-bo;HUANG Ru-xi;XIE Ye;LIN Hai-feng. Preparation and Package Performances of Red Phosphor for LED[J]. 发光学报, 2010,31(3): 305-310 DOI：

摘要

实验采用碳酸锂、氧化钨、氧化铕制备了LiEuW

发光粉

通过扫描电镜和光谱仪分别研究了它的形貌与光谱特征。结果显示:LiEuW

发光粉的激发光谱较宽

非常适合于近紫外、蓝光及绿光芯片

发射光谱峰值位于615 nm

色坐标为(

x＝0.666

＝0.331);球磨对它的形貌影响非常明显。为了比较硫化物发光粉和LiEuW

发光粉的性能

分别对他们进行了封装实验

结果显示:LiEuW

发光粉能够有效降低色温

更重要的是

它对光效影响较小

4 000 K时

光效可以保持在60 lm/W以上。

Abstract

LiEuW

phosphor was prepared with lithium carbonate

europium oxide and tungsten oxide. The spectral properties and morphology were exhibited by fluorescence spectrometer and SEM

respectively. The result showed that there is a wide excitation spectrum of this phosphor being suitable for LED chips with near-ultraviolet(NUV)

blue or green emission. Its emission peak locates at 615 nm

and the emission chromaticity coordinates are

＝0.666

＝0.331; Milling obviously impacts on its morphology. Sulfide phosphor and LiEuW

phosphor were encapsulated

respectively

to compare their properties

the result showed that the latter can also decrease color temperature

and more importantly

the luminous efficiency is less affected

it can keep 60 lm/W above when color temperature is 4 000 K.

关键词

Keywords

references

. Jing Yanjun, Wang Haibo, Huang Ruxi, et al. Red phosphor LiEu(SiO2)1/6(WO4)2 particles prepared by spray pyrolysis[J]. Chin. J. Lumin.(发光学报), 2007, 28 (5):715-719 (in Chinese).

. Yang Shuijin, Yu Xinwu, Sun Jutang, et al. Synthesis of Eu3+ doped Li2WO4 and its luminescence properties and ionic conductivity [J]. Chemical Research and Application, 2000, 12 (5):465-470.

. Yang Shuijin, Sun Jutang. Synthesis and luminescent properties of Eu3+ doped Li2WO4[J]. Chin. Rare Earth (稀土), 2004, 25 (1):17-19 (in Chinese).

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. Qi Faxin, Wang Haibo, Zhu Xianzhong. Spherical YAG ∶ Ce3+ phosphor particles prepared by spray pyrolysis [J]. J. Rare Earth, 2005, 23 (4):892-895.

. Hu Yunsheng, Ye Hongqi, Zhuang Weidong, et al. Influence of Sr/Ca ratio on red phosphor Ca1-xSr<em>xS ∶ Eu2+ [J]. J. Chin. Rare Earth Soc. (中国稀土学报), 2004, 22 (6):854-858 (in Chinese).

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