Luminescence Properties and Energy Transfer Between Ce3+ and Tb3+ in Sr7Zr (PO4)6

CAO Ru; TIAN Lian-hua

doi:10.3788/fgxb20173804.0450

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Luminescence Properties and Energy Transfer Between Ce³⁺ and Tb³⁺ in Sr₇Zr (PO₄)₆

更新时间：2020-08-12

- Luminescence Properties and Energy Transfer Between Ce³⁺ and Tb³⁺ in Sr₇Zr (PO₄)₆
- Chinese Journal of Luminescence Vol. 38, Issue 4, Pages: 450-456(2017)
- 作者机构：
  
  延边大学理学院物理系, 吉林延吉,133002
- 作者简介：
- 基金信息：
  
  Supported by National Natural Science Foundation of China(51362028)
- DOI：10.3788/fgxb20173804.0450
  CLC： O482.31
- Received：29 September 2016，
  
  Revised：02 December 2016，
  
  Published：05 April 2017
- 稿件说明：
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曹铷, 田莲花,. Tb3+和Ce3+在Sr7Zr（PO4）6基质中能量传递及发光特性研究[J]. 发光学报, 2017,38(4): 450-456

CAO Ru, TIAN Lian-hua,. Luminescence Properties and Energy Transfer Between Ce3+ and Tb3+ in Sr7Zr (PO4)6[J]. Chinese Journal of Luminescence, 2017,38(4): 450-456
曹铷, 田莲花,. Tb3+和Ce3+在Sr7Zr（PO4）6基质中能量传递及发光特性研究[J]. 发光学报, 2017,38(4): 450-456 DOI： 10.3788/fgxb20173804.0450.

CAO Ru, TIAN Lian-hua,. Luminescence Properties and Energy Transfer Between Ce3+ and Tb3+ in Sr7Zr (PO4)6[J]. Chinese Journal of Luminescence, 2017,38(4): 450-456 DOI： 10.3788/fgxb20173804.0450.

摘要

用高温固相法制备了Sr

Zr（PO

）

：Tb

、Sr

Zr（PO

）

：Ce

及Sr

Zr（PO

）

：Tb

'Ce

一系列荧光粉'并通过X射线衍射仪及荧光光谱仪分析了其结构和发光性质。结果表明'Sr

Zr（PO

）

：Tb

呈现特征绿色发射'最强发射峰位于543 nm'属于Tb

的

跃迁'激发峰位于226 nm处'但激发带较窄。为拓宽其激发带的宽度'在Sr

Zr（PO

）

：Tb

中掺入了Ce

'观察到掺入Ce

后激发带变宽'且在Ce

的激发波长处激发得到了Tb

的发射'表明存在Ce

到Tb

的能量传递。

Abstract

The phosphors of Sr

Zr(PO

)

:Tb

Zr(PO

)

:Ce

and Sr

Zr(PO

)

:Tb

were prepared by the solid-state reaction. The structures of these powders were characterized by X ray diffractometer (XRD). The excitation and emission spectra were characterized by spectrofluorimeter. The excitation spectrum of Sr

Zr(PO

)

:Tb

shows a narrower band in the range of 200-250 nm with the maximum centered at 226 nm

which belongs to

transition of Tb

. The photoluminescence spectra of Sr

Zr(PO

)

:Tb

exhibits four emission peaks. The strongest green emission peak is at 543 nm which belongs to

transition of Tb

. The excitation spectrum of Sr

Zr(PO

)

:Ce

shows a broad band centered at 289 nm and the emission peak is at 374 nm. In order to broaden the width of the excitation band of Sr

Zr(PO

)

:Tb

ions are incorporated. It is found that the excitation band became broader. The excitation spectrum of Sr

Zr(PO

)

:Ce

shows two broad bands

respectively

the former belongs to the excitation of Tb

and the latter belongs to the excitation of Ce

. The emission spectra of Sr

Zr(PO

)

:Ce

exhibit strong emission peaks of Tb

excited by 289 nm

which is the excitation band center of Ce

. It is speculated that the energy transfer occurs from Ce

to Tb

关键词

Keywords

references

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