Eu3+掺杂双钙钛矿Sr2ZnTeO6红色荧光粉的制备及其发光性能

赵磊; 范飞月; 蔡忆雨; 田晨阳; 李艳艳; 林社宝

doi:10.3788/fgxb20183909.1193

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Eu³⁺掺杂双钙钛矿Sr₂ZnTeO₆红色荧光粉的制备及其发光性能

材料合成及性能 | 更新时间：2020-08-12

- Eu³⁺掺杂双钙钛矿Sr₂ZnTeO₆红色荧光粉的制备及其发光性能
- Synthesis and Luminescence Properties of Red-emitting Sr₂ZnTeO₆: Eu³⁺ Phosphors
- 发光学报 2018年39卷第9期页码：1193-1199
- 作者机构：
  
  宝鸡文理学院物理与光电技术学院,陕西宝鸡,721016
- 作者简介：
- 基金信息：
  
  国家自然科学基金（11647008）();宝鸡市科技攻关项目（14GYGG-5-1）();宝鸡文理学院校级重点项目（ZK16071，ZK15041）();2016年陕西
- DOI：10.3788/fgxb20183909.1193
  中图分类号： O482.31
- 纸质出版日期：2018-9-5，
  
  网络出版日期：2018-4-10，
  
  收稿日期：2017-12-3，
  
  修回日期：2018-2-25，
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赵磊, 范飞月, 蔡忆雨等. Eu3+掺杂双钙钛矿Sr2ZnTeO6红色荧光粉的制备及其发光性能[J]. 发光学报, 2018,39(9): 1193-1199

ZHAO Lei, FAN Fei-yue, CAI Yi-yu etc. Synthesis and Luminescence Properties of Red-emitting Sr2ZnTeO6: Eu3+ Phosphors[J]. Chinese Journal of Luminescence, 2018,39(9): 1193-1199
赵磊, 范飞月, 蔡忆雨等. Eu3+掺杂双钙钛矿Sr2ZnTeO6红色荧光粉的制备及其发光性能[J]. 发光学报, 2018,39(9): 1193-1199 DOI： 10.3788/fgxb20183909.1193.

ZHAO Lei, FAN Fei-yue, CAI Yi-yu etc. Synthesis and Luminescence Properties of Red-emitting Sr2ZnTeO6: Eu3+ Phosphors[J]. Chinese Journal of Luminescence, 2018,39(9): 1193-1199 DOI： 10.3788/fgxb20183909.1193.

摘要

采用高温固相法在1 150℃下经二次煅烧合成了双钙钛矿型的红色荧光粉Sr

ZnTeO

∶

（

=0.05-0.40），并进行了相组成、发光性质和热稳定性的研究。结果表明，所合成的Sr

ZnTeO

与Sr

ZnWO

具有相同的结构，掺杂离子的加入没有改变相结构。样品的激发光谱由电荷迁移带和Eu

离子的特征激发峰组成，主激发峰位于464 nm（

）。样品的发射光谱位于614 nm（

）。Sr

ZnTeO

∶

荧光粉的发光强度随着Eu

离子的掺杂，先增大后减小，在

0.25时，发生浓度猝灭现象。通过变温荧光发现它具有非常好的热稳定性。由于荧光粉的最佳激发位于464 nm，因而可以用于蓝光激发下的白光LED的红色荧光粉。

Abstract

A series of novel double perovskite tellurate red-emitting phosphors Sr

ZnTeO

(

=0.05-0.40) were successfully synthesized by a high-temperature solid-state reaction method at 1 150℃. The phase structure

photoluminescence properties and thermal stability of the phosphor were investigated in detail. The phosphor shows dominant emission peak at 614 nm belonging to the

electric dipole transition under 464 nm excitation. The luminescence intensity keeps increasing with increasing the content of Eu

to 25%

and the critical transfer distance of Eu

was calculated to be 1.2 nm. The quenching temperature for Sr

ZnTeO

:0.25Eu

was estimated to be above 500 K. This spectral feature reveals high color purity and excellent chromaticity coordinate characteristics. Therefore

-doped Sr

ZnTeO

phosphors are potential red phosphors for blue chip-based white light-emitting diode and display devices.

关键词

双钙钛矿荧光粉Eu3+碲酸盐

Keywords

double perovskitephosphorEu3+tellurate

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