Synthesis, Structure and Optical Property of ZnAl2O4：Tb3+ Phosphor

LEI Zhi-gao; CHANG Tian-ci; CUI Jia-meng; CHEN Jun-fei; XIAO Ying; MENG Da-wei; ZOU Kai; WU

doi:10.3788/fgxb20133411.1446

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Synthesis, Structure and Optical Property of ZnAl₂O₄：Tb³⁺ Phosphor

更新时间：2020-08-12

- Synthesis, Structure and Optical Property of ZnAl₂O₄：Tb³⁺ Phosphor
- Chinese Journal of Luminescence Vol. 34, Issue 11, Pages: 1446-1450(2013)
- 作者机构：
  
  1. 中国地质大学材料与化学学院,湖北武汉,430074
  2. 武汉科技大学城市学院, 湖北武汉 430083
  3. 华中科技大学管理学院, 湖北武汉 430074
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20133411.1446
  CLC： O482.31
- Received：03 July 2013，
  
  Revised：30 August 2013，
  
  Published：10 November 2013
- 稿件说明：
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雷志高, 常天赐, 崔佳萌, 陈骏飞, 肖颖, 孟大维, 邹锴, 吴秀玲. ZnAl2O4：Tb3+荧光粉的合成、结构及其光学性能研究[J]. 发光学报, 2013,34(11): 1446-1450

LEI Zhi-gao, CHANG Tian-ci, CUI Jia-meng, CHEN Jun-fei, XIAO Ying, MENG Da-wei, ZOU Kai, WU Xiu-ling. Synthesis, Structure and Optical Property of ZnAl2O4：Tb3+ Phosphor[J]. Chinese Journal of Luminescence, 2013,34(11): 1446-1450
雷志高, 常天赐, 崔佳萌, 陈骏飞, 肖颖, 孟大维, 邹锴, 吴秀玲. ZnAl2O4：Tb3+荧光粉的合成、结构及其光学性能研究[J]. 发光学报, 2013,34(11): 1446-1450 DOI： 10.3788/fgxb20133411.1446.

LEI Zhi-gao, CHANG Tian-ci, CUI Jia-meng, CHEN Jun-fei, XIAO Ying, MENG Da-wei, ZOU Kai, WU Xiu-ling. Synthesis, Structure and Optical Property of ZnAl2O4：Tb3+ Phosphor[J]. Chinese Journal of Luminescence, 2013,34(11): 1446-1450 DOI： 10.3788/fgxb20133411.1446.

摘要

通过溶胶-凝胶法制备出不同Tb

掺杂浓度和不同二次煅烧温度下的ZnAl

:Tb

荧光粉

并利用X射线衍射(XRD)和荧光光谱等对样品进行了表征。由XRD结果可知

当Tb

掺杂的摩尔分数不大于9%

二次煅烧温度在600℃以上时

所得粉体为结晶性良好的尖晶石相。在紫外光激发下

ZnAl

:Tb

荧光粉的发射光谱由位于488 nm(

)、542 nm(

)、587 nm(

)和621.5 nm(

)的4个发射峰组成。研究发现

的掺杂浓度和二次煅烧温度对样品发光强度有着重要影响

当Tb

的摩尔分数为5%

二次煅烧温度为900℃时

ZnAl

:Tb

荧光粉的发光最强

继续增加Tb

掺杂浓度或提高煅烧温度

分别会出现浓度猝灭和温度猝灭现象。

Abstract

The ZnAl

:Tb

phosphor powders were synthesized by sol-gel method with different doping concentrations of Tb

and secondary calcination temperatures. Then they were characterized by X-ray diffraction (XRD) and photoluminescence (PL). The XRD patterns show that the pure spinel phase of high crystallinity can be obtained when the mole fraction of Tb

is less than 9% and the secondary calcination temperature exceeds 600℃. Under the excitation of ultraviolet light

the emission spectra of ZnAl

:Tb

phosphor consists of four peaks locating at 488 nm (

)

542 nm (

)

587 nm (

)

and 621.5 nm (

). The influence of Tb

concentration and secondary calcination temperature on the luminescence intensity was significant. The photoluminescence spectra intensity of ZnAl

:Tb

is the strongest when the mole fraction of Tb

is 5% and the secondary calcination temperature is 900℃. When the mole fraction of Tb

and the secondary calcination temperature increase excessively

concentration quenching and temperature quenching appear

respectively.

关键词

Keywords

references

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