近紫外光激发黄色荧光粉Ba3Y4O9：Dy3+的制备及发光特性

李佳钰; 庞然; 于湛; 刘丽艳; 李成宇

doi:10.3788/fgxb20183904.0515

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近紫外光激发黄色荧光粉Ba₃Y₄O₉：Dy³⁺的制备及发光特性

材料合成及性能 | 更新时间：2020-08-12

- 近紫外光激发黄色荧光粉Ba₃Y₄O₉：Dy³⁺的制备及发光特性
- Preparation and Luminescence Properties of Yellow Phosphors Ba₃Y₄O₉: Dy³⁺ Excited by Near UV Light
- 发光学报 2018年39卷第4期页码：515-522
- 作者机构：
  
  1. 中国科学院长春应用化学研究所稀土资源利用国家重点实验室, 吉林长春 130022
  2. 沈阳师范大学化学与化工学院, 辽宁沈阳 110034
- 作者简介：
- 基金信息：
  
  国家重点研发计划（2016YFB07010003）();中国科学院前沿科学重点研究项目（YZDY-SSW-JSC018）();辽宁省自然科学基金（201602674）资
- DOI：10.3788/fgxb20183904.0515
  中图分类号： O482.31
- 纸质出版日期：2018-4-5，
  
  网络出版日期：2017-8-21，
  
  收稿日期：2017-7-11，
  
  修回日期：2017-8-15，
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李佳钰, 庞然, 于湛等. 近紫外光激发黄色荧光粉Ba3Y4O9：Dy3+的制备及发光特性[J]. 发光学报, 2018,39(4): 515-522

LI Jia-yu, PANG Ran, YU Zhan etc. Preparation and Luminescence Properties of Yellow Phosphors Ba3Y4O9: Dy3+ Excited by Near UV Light[J]. Chinese Journal of Luminescence, 2018,39(4): 515-522
李佳钰, 庞然, 于湛等. 近紫外光激发黄色荧光粉Ba3Y4O9：Dy3+的制备及发光特性[J]. 发光学报, 2018,39(4): 515-522 DOI： 10.3788/fgxb20183904.0515.

LI Jia-yu, PANG Ran, YU Zhan etc. Preparation and Luminescence Properties of Yellow Phosphors Ba3Y4O9: Dy3+ Excited by Near UV Light[J]. Chinese Journal of Luminescence, 2018,39(4): 515-522 DOI： 10.3788/fgxb20183904.0515.

摘要

通过高温固相法合成了一系列Ba

：

荧光粉材料。利用X射线粉末衍射、荧光光谱和荧光寿命对样品进行了表征。实验表明，样品的激发光谱由一系列线状峰组成，峰值分别位于328，355，368，386，427，456，471 nm。在355 nm激发下，荧光粉在490 nm（

9/2

15/2

）和580 nm（

9/2

13/2

）处有很强的发射，发射光谱的色坐标位于黄光区域。研究了不同Dy

掺杂浓度对样品发光性质的影响，发现样品的发光随着Dy

浓度的增大而增强，但光谱形状基本保持不变，表明Dy

占据了基质中低对称性的Y

格位。当Dy

摩尔分数

=0.08时出现发光强度猝灭现象，浓度猝灭机理为电偶极-电偶极相互作用。样品的发光寿命随着Dy

浓度的增大逐渐减小，进一步证明了Dy

离子之间存在着能量传递现象。Ba

：Dy

荧光粉的发光位于黄光区域，有较好的热稳定性，是潜在的白光LED用荧光粉材料。

Abstract

The phosphor Ba

was synthesized by traditional high-temperature solid-state reaction method. The structure and luminescence properties were characterized using X-ray powder diffraction

photoluminescence spectra (PL) and fluorescence decay time. The results indicate that the excitation spectrum includes a series of linear peaks

located at 328

355

368

386

427

456

471 nm. The main emission peaks were located at 490 nm(

9/2

15/2

)and 580 nm(

9/2

13/2

) under 355 nm excitation. The chromaticity coordinates of Ba

:Dy

phosphors were measured

which were in the yellow region. The effect of the doping concentration of Dy

was investigated

and found the samples of luminescence intensity increased with the increasing of the concentration of Dy

but the spectral shape basic remains the same. This indicates that Dy

occupies the Y

position of low symmetry in the matrix. The concentration quenching occurred when

=0.08 for Ba

phosphor and its mechanism is ascribed to dipole-dipole interaction. The decay time of the phosphor decreases with the increase of Dy

-doped concentrations

this is further evidence that there exists a phenomenon of energy transfer between the Dy

ions. Ba

:Dy

phosphors are located in the yellow region and have good thermal stability.

关键词

Ba3Y4O9黄光荧光材料光谱性质

Keywords

Ba3Y4O9yellow lightfluorescent materialoptical properties

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