基于紫外或蓝光LED激发的Eu3+和Bi3+ 共掺杂LaMgB5O10红色荧光粉

张金苏; 梁左秋; 仲海洋; 孙佳石; 程丽红; 李香萍; 陈宝玖

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基于紫外或蓝光LED激发的Eu³⁺和Bi³⁺ 共掺杂LaMgB₅O₁₀红色荧光粉

材料合成及性能研究 | 更新时间：2020-08-12

- 基于紫外或蓝光LED激发的Eu³⁺和Bi³⁺ 共掺杂LaMgB₅O₁₀红色荧光粉
- Enhanced Red Photoluminescence in Eu³⁺ and Bi³⁺ Codoped LaMgB₅O₁₀ Based on UV/Blue LEDs Excitation
- 发光学报 2011年32卷第12期页码：1210-1215
- 作者机构：
  
  大连海事大学物理系,辽宁大连,116026
- 作者简介：
- 基金信息：
  
  国家自然科学基金(61078061,11104023,11104024)();中央高校基本科研业务费专项基金(2011JC037,2011JC036,2011ZD032
- DOI：
  中图分类号： O482.31
- 收稿日期：2011-09-01，
  
  修回日期：2011-10-09，
  
  网络出版日期：2011-12-22，
  
  纸质出版日期：2011-12-22
- 稿件说明：
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张金苏, 梁左秋, 仲海洋, 孙佳石, 程丽红, 李香萍, 陈宝玖. 基于紫外或蓝光LED激发的Eu3+和Bi3+ 共掺杂LaMgB5O10红色荧光粉[J]. 发光学报, 2011,32(12): 1210-1215

ZHANG Jin-su, LIANG Zuo-qui, ZHONG Hai-yang, SUN Jia-shi, CHENG Li-hong, LI Xiang-ping, CHEN Bao-jiu. Enhanced Red Photoluminescence in Eu3+ and Bi3+ Codoped LaMgB5O10 Based on UV/Blue LEDs Excitation[J]. Chinese Journal of Luminescence, 2011,32(12): 1210-1215
张金苏, 梁左秋, 仲海洋, 孙佳石, 程丽红, 李香萍, 陈宝玖. 基于紫外或蓝光LED激发的Eu3+和Bi3+ 共掺杂LaMgB5O10红色荧光粉[J]. 发光学报, 2011,32(12): 1210-1215 DOI：

ZHANG Jin-su, LIANG Zuo-qui, ZHONG Hai-yang, SUN Jia-shi, CHENG Li-hong, LI Xiang-ping, CHEN Bao-jiu. Enhanced Red Photoluminescence in Eu3+ and Bi3+ Codoped LaMgB5O10 Based on UV/Blue LEDs Excitation[J]. Chinese Journal of Luminescence, 2011,32(12): 1210-1215 DOI：

摘要

采用固相法合成了Eu

和Bi

共掺杂的LaMgB

红色荧光粉

在紫外或蓝光激发下

样品的红光强度随着Bi

的增加而增强。利用X射线衍射对样品的结构进行了分析

结果表明

掺入Bi

后

样品的结晶度更好。根据Judd-Ofelt理论计算

得到样品的内量子效率不随掺杂剂的改变而变化

约为43%。在394 nm激发下

和Bi

共掺杂样品的红色荧光强度较Eu

单掺杂样品中增强了50%。根据漫反射和变温光谱测量结果

分析指出Eu

红色荧光增强是由于Eu

的吸收增强。

Abstract

Red phosphors of Eu

and Bi

single- and double- doped LaMgB

have been synthesized by a solid-state reaction. The red emission intensities were enhanced with the increase of Bi

content. The crystal structures were analyzed using the X-ray diffraction. It indicated that the crystallization is better in the codoped samples than the Eu

monodoped sample. According to the results calculated by the Judd-Ofelt theory

the internal quantum efficiencies keep a constant value of about 43%. Moreover

red emission intensity increase 50% in the codoped sample comparison with the Eu

monodoped one under 394 nm excitation. It was confirmed that the enhanced red photoluminescence is due to the increase of Eu

absorption strengths.

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Keywords

references

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