Enhanced Red Photoluminescence in Eu3+ and Bi3+ Codoped LaMgB5O10 Based on UV/Blue LEDs Excitation

ZHANG Jin-su; LIANG Zuo-qui; ZHONG Hai-yang; SUN Jia-shi; CHENG Li-hong; LI Xiang-ping; CH

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Enhanced Red Photoluminescence in Eu³⁺ and Bi³⁺ Codoped LaMgB₅O₁₀ Based on UV/Blue LEDs Excitation

paper | 更新时间：2020-08-12

- Enhanced Red Photoluminescence in Eu³⁺ and Bi³⁺ Codoped LaMgB₅O₁₀ Based on UV/Blue LEDs Excitation
- Chinese Journal of Luminescence Vol. 32, Issue 12, Pages: 1210-1215(2011)
- 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：
- DOI：
  CLC： O482.31
- Received：01 September 2011，
  
  Revised：2011-10-9，
  
  Published Online：22 December 2011，
  
  Published：22 December 2011
- 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.

关键词

Keywords

references

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