α-Ba3Y (BO3)3:Dy3+荧光粉的合成及其发光性能

宁宏宇; 程志远; 董超; 胡泽青; 于晶杰; 张彦杰

doi:10.3788/fgxb20183908.1087

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α-Ba₃Y (BO₃)₃:Dy³⁺荧光粉的合成及其发光性能

材料合成及性能 | 更新时间：2020-08-12

- α-Ba₃Y (BO₃)₃:Dy³⁺荧光粉的合成及其发光性能
- Synthesis and Luminescence of α-Ba₃Y(BO₃)₃:Dy³⁺ Phosphors
- 发光学报 2018年39卷第8期页码：1087-1094
- 作者机构：
  
  大连工业大学光子学研究所,辽宁大连,116034
- 作者简介：
- 基金信息：
  
  辽宁省自然科学基金（20170540074）资助项目()
- DOI：10.3788/fgxb20183908.1087
  中图分类号： O482.31
- 纸质出版日期：2018-8-5，
  
  网络出版日期：2018-4-10，
  
  收稿日期：2017-12-11，
  
  修回日期：2018-1-25，
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宁宏宇, 程志远, 董超等. α-Ba3Y (BO3)3:Dy3+荧光粉的合成及其发光性能[J]. 发光学报, 2018,39(8): 1087-1094

NING Hong-yu, CHENG Zhi-yuan, DONG Chao etc. Synthesis and Luminescence of α-Ba3Y(BO3)3:Dy3+ Phosphors[J]. Chinese Journal of Luminescence, 2018,39(8): 1087-1094
宁宏宇, 程志远, 董超等. α-Ba3Y (BO3)3:Dy3+荧光粉的合成及其发光性能[J]. 发光学报, 2018,39(8): 1087-1094 DOI： 10.3788/fgxb20183908.1087.

NING Hong-yu, CHENG Zhi-yuan, DONG Chao etc. Synthesis and Luminescence of α-Ba3Y(BO3)3:Dy3+ Phosphors[J]. Chinese Journal of Luminescence, 2018,39(8): 1087-1094 DOI： 10.3788/fgxb20183908.1087.

摘要

采用传统的固相法成功合成了一系列-Ba

Y（BO

）

：Dy

荧光粉，使用X射线衍射（XRD）、扫描电镜（SEM）、荧光光谱（FL）和寿命衰减曲线等对样品进行表征。结果表明：在近紫外/蓝光激发下，样品的发射光谱主要包含黄（577 nm）、蓝（488 nm）两个发射峰组成，分别对应电子跃迁

9/2

和

9/2

5/2

。最佳合成温度为1 100℃，该条件下合成的样品具有纯相、最大结晶度和最大发光强度。研究了荧光粉的浓度猝灭效应，猝灭机理主要是dipole-dipole interaction，同时exchange interaction无法忽略，临界摩尔分数为0.07。样品的寿命衰减曲线为二次指数型，这与Ba

Y（BO

）

特有的晶格结构有直接关系。-Ba

Y（BO

）

：Dy

荧光粉有应用于荧光转换型白光LED照明的潜力。

Abstract

A series of phosphors -Ba

Y(BO

)

:Dy

have been synthesized via conventional solid-state method and characterized. Fluorescence spectra (FL) show that the as-synthesized phosphors mainly exhibit two dominating emission peaks at 488 and 577 nm corresponding to the transitions from

9/2

15/2

and

13/2

respectively under ultraviolet (UV) or blue radiation. The best synthesis temperature is 1 100℃

leading to the most intensive luminescence

pure phase and most sufficient crystal growth ensured by FL

X-ray diffraction (XRD) and scanning electron microscope (SEM)

respectively. The concentration quenching mechanism has been determined to be mainly dipole-dipole interaction and exchange interaction is not negligible due to the specific unit cell structure; the critical concentration is 0.07. The second-order exponential lifetime decay curves are observed and its origin related to the specific unit cell structure is discussed. The as-synthesized phosphor has potential application for pc-WLEDs in the lighting field.

关键词

荧光粉&alpha-Ba3Y (BO3)3:Dy3+晶格结构

Keywords

phosphors&alpha-Ba3Y(BO3)3:Dy3+crystal structure

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