共掺Mo6+离子的Ca4LaNbW4O20：Eu3+荧光粉的发光特性

刘影; 俞淳善; 顾光瑞; 田莲花

doi:10.3788/fgxb20133409.1113

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共掺Mo⁶⁺离子的Ca₄LaNbW₄O₂₀：Eu³⁺荧光粉的发光特性

材料合成及性能 | 更新时间：2020-08-12

- 共掺Mo⁶⁺离子的Ca₄LaNbW₄O₂₀：Eu³⁺荧光粉的发光特性
- Photoluminescence Characteristics of Red-emitting Phosphors Ca₄LaNbW₄O₂₀：Eu³⁺ Incorporated with Mo⁶⁺ Ions
- 发光学报 2013年34卷第9期页码：1113-1117
- 作者机构：
  
  延边大学理学院物理系, 吉林延吉,133002
- 作者简介：
- 基金信息：
  
  国家自然科学基金(51272224,51362028)();吉林省科技发展计划(20130101035JC)资助项目()
- DOI：10.3788/fgxb20133409.1113
  中图分类号： O482.31
- 收稿日期：2013-04-12，
  
  修回日期：2013-07-11，
  
  纸质出版日期：2013-09-10
- 稿件说明：
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刘影, 俞淳善, 顾光瑞, 田莲花. 共掺Mo6+离子的Ca4LaNbW4O20：Eu3+荧光粉的发光特性[J]. 发光学报, 2013,34(9): 1113-1117

LIU Ying, YU Chun-shan, GU Guang-rui, TIAN Lian-hua. Photoluminescence Characteristics of Red-emitting Phosphors Ca4LaNbW4O20：Eu3+ Incorporated with Mo6+ Ions[J]. Chinese Journal of Luminescence, 2013,34(9): 1113-1117
刘影, 俞淳善, 顾光瑞, 田莲花. 共掺Mo6+离子的Ca4LaNbW4O20：Eu3+荧光粉的发光特性[J]. 发光学报, 2013,34(9): 1113-1117 DOI： 10.3788/fgxb20133409.1113.

LIU Ying, YU Chun-shan, GU Guang-rui, TIAN Lian-hua. Photoluminescence Characteristics of Red-emitting Phosphors Ca4LaNbW4O20：Eu3+ Incorporated with Mo6+ Ions[J]. Chinese Journal of Luminescence, 2013,34(9): 1113-1117 DOI： 10.3788/fgxb20133409.1113.

摘要

采用高温固相法制备了红色荧光粉Ca

LaNb(W

)

:Eu

并研究了样品的发光性质。Ca

LaNbW

:Eu

的激发光谱中包含一个宽的激发带

峰值位于275 nm

归属于WO

基团的电荷迁移跃迁。随着Mo

离子的掺入

LaNbW

:Eu

位于275 nm处的吸收带变宽

其原因是O

-Eu

的电荷迁移跃迁增强。在Ca

LaNb(W

)

:Eu

的发射光谱中

400~500 nm间较宽的发射带属于WO

基团的发射带

而位于591 nm和616 nm的尖锐的发射峰分别属于Eu

的

磁偶极跃迁和

电偶极跃迁发射。随着Mo

离子浓度的增加

基团的发射带强度下降

从而提高了色纯度。

Abstract

Red-emitting phosphors Ca

LaNb(W

)

:Eu

were synthesized by the solid-state reaction

and the photoluminescence properties of these compounds were investigated. The excitation spectra of Ca

LaNbW

:Eu

show a broad excitation band centered at 275 nm

which attribute to the charge transfer (CT) transition of WO

complex. With the introduction of Mo

ions into Ca

LaNbW

:Eu

the absorption band at 275 nm broadens due to the enhancement of CT transitions of O

-Eu

. The emission spectra of Ca

LaNb(W

)

:Eu

exhibit sharp emission peaks at 591 and 616 nm of Eu

transitions and a 400~500 nm broad emission band of WO

transition. With the increase of Mo

content

the intensity of broad emission band of WO

transition decreases. The pure red color is obtained.

关键词

Keywords

references

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