Synthesis and Luminescence of α-Ba3Y(BO3)3:Dy3+ Phosphors

NING Hong-yu; CHENG Zhi-yuan; DONG Chao; HU Ze-qing; YU Jing-jie; ZHANG Yan-jie

doi:10.3788/fgxb20183908.1087

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Synthesis and Luminescence of α-Ba₃Y(BO₃)₃:Dy³⁺ Phosphors

更新时间：2020-08-12

- Synthesis and Luminescence of α-Ba₃Y(BO₃)₃:Dy³⁺ Phosphors
- Chinese Journal of Luminescence Vol. 39, Issue 8, Pages: 1087-1094(2018)
- 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：
  
  Supported by Natural Science Foundation of Liaoning Province(20170540074)
- DOI：10.3788/fgxb20183908.1087
  CLC： O482.31
- Received：11 December 2017，
  
  Revised：25 January 2018，
  
  Published Online：10 April 2018，
  
  Published：05 August 2018
- 稿件说明：
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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.

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Keywords

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