Preparation and Luminescent Properties of LiBaPO4 ∶ Eu3+ Phosphor

LI Pan-lai; WANG Yun-zhu; WANG Zhi-jun; GUO Qing-lin; YANG Zhi-ping

doi:10.3788/fgxb20113207.0665

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Preparation and Luminescent Properties of LiBaPO₄ ∶ Eu³⁺ Phosphor

paper | 更新时间：2020-08-12

- Preparation and Luminescent Properties of LiBaPO₄ ∶ Eu³⁺ Phosphor
- Chinese Journal of Luminescence Vol. 32, Issue 7, Pages: 665-669(2011)
- 作者机构：
  
  1. 河北大学物理科学与技术学院,河北保定,071002
  2. 河北大学计算中心,河北保定,071002
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20113207.0665
  CLC： O482.31
- Received：25 February 2011，
  
  Revised：24 April 2011，
  
  Published Online：22 July 2011，
  
  Published：22 July 2011
- 稿件说明：
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李盼来, 王蕴珠, 王志军, 郭庆林, 杨志平. LiBaPO4 ∶ Eu3+材料的制备及发光特性[J]. 发光学报, 2011,32(7): 665-669

LI Pan-lai, WANG Yun-zhu, WANG Zhi-jun, GUO Qing-lin, YANG Zhi-ping. Preparation and Luminescent Properties of LiBaPO4 ∶ Eu3+ Phosphor[J]. Chinese Journal of Luminescence, 2011,32(7): 665-669
李盼来, 王蕴珠, 王志军, 郭庆林, 杨志平. LiBaPO4 ∶ Eu3+材料的制备及发光特性[J]. 发光学报, 2011,32(7): 665-669 DOI： 10.3788/fgxb20113207.0665.

LI Pan-lai, WANG Yun-zhu, WANG Zhi-jun, GUO Qing-lin, YANG Zhi-ping. Preparation and Luminescent Properties of LiBaPO4 ∶ Eu3+ Phosphor[J]. Chinese Journal of Luminescence, 2011,32(7): 665-669 DOI： 10.3788/fgxb20113207.0665.

摘要

采用高温固相法制备了LiBaPO

∶ Eu

红色发光材料

研究了Eu

掺杂浓度、电荷补偿剂等对材料发光性质的影响。结果显示

在401 nm近紫外光激发下

材料呈多峰发射

分别由Eu

的

(

4)能级跃迁产生

主峰位于619 nm;监测619 nm发射峰

所得激发光谱由O

电荷迁移带(200~350 nm)和f-f高能级跃迁吸收带(350~450 nm)组成

主峰位于401 nm。改变Eu

掺杂浓度

LiBaPO

∶ Eu

材料的发射强度随之改变

摩尔分数为5%时

强度最大;依据Dexter理论

得出浓度猝灭机理为电偶极-电偶极相互作用;添加电荷补偿剂提高了LiBaPO

∶ Eu

材料的发射强度

且Li

和Cl

的效果最好。

Abstract

activated LiBaPO

phosphor with several emission peaks (589

594

619

655 and 692 nm)

under the near ultraviolet light (401 nm) was synthesized by the high temperature solid state reaction method. And the phase present of the phosphor was characterized by powder X-ray diffraction (XRD)

the spectrum of the phosphor was measured by a SHIMADZU RF-540 fluorescence spectrophotometer. It was found that the processing parameters

including the activator content and the charge compensator

affected the emission intensity and other luminescent properties. The emission intensity of LiBaPO

∶ Eu

phosphor reaches the maximum at 5% Eu

and the concentration self-quenching mechanism is the d-d interaction by Dexter theory. When the charge compensator incorporated

the emission intensity of the phosphor can be enhanced. The results show that LiBaPO

∶ Eu

is a promising red phosphor for white LED.

关键词

Keywords

references

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