Photolminescence Properties of Na2SO4 : TbF3 under VUV-UV Light Excitation

HE Jiu-yang; TAXIMAITI Yusupu; AJIMU Abulai; AIERKEN Sidike; GONG Lan-xin

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Photolminescence Properties of Na₂SO₄ : TbF₃ under VUV-UV Light Excitation

paper | 更新时间：2020-08-12

- Photolminescence Properties of Na₂SO₄ : TbF₃ under VUV-UV Light Excitation
- Chinese Journal of Luminescence Vol. 31, Issue 2, Pages: 176-180(2010)
- 作者机构：
  
  1. 新疆师范大学数理信息学院物理系,新疆乌鲁木齐,830000
  2. 新疆师范大学生命科学与化学学院化学系,新疆乌鲁木齐,830000
- 作者简介：
- 基金信息：
- DOI：
  CLC： O482.31
- Received：30 October 2009，
  
  Revised：02 January 1900，
  
  Published Online：30 April 2010，
  
  Published：30 April 2010
- 稿件说明：
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HE Jiu-yang, TAXIMAITI Yusupu, AJIMU Abulai, et al. Photolminescence Properties of Na₂SO₄ : TbF₃ under VUV-UV Light Excitation[J]. Chinese journal of luminescence, 2010, 31(2): 176-180.
DOI：

HE Jiu-yang, TAXIMAITI Yusupu, AJIMU Abulai, et al. Photolminescence Properties of Na₂SO₄ : TbF₃ under VUV-UV Light Excitation[J]. Chinese journal of luminescence, 2010, 31(2): 176-180. DOI：

摘要

在空气中900 ℃温度下

对纯天然无水芒硝(Na

)和TbF

的混合粉末加热20 min

制备了Na

: TbF

发光材料。并测量了在室温中真空紫外-紫外光下的发射和激发光谱。发射光谱有一系列由于Tb

离子的

→

(J=6

2)和

→

(J=6

2)跃迁发射峰。通过监测542 nm处发光得到的激发光谱

分别由Tb

离子4f

→4f

n-1

5d跃迁(187

193

218 nm)

基质吸收(165

200

240 nm)引起的强激发谱和禁戒的f-f跃迁产生的弱激发谱组成。在TbF

的掺杂量在0.3%~2%范围内

随着Tb

离子掺杂量的增加

真空紫外区的激发谱相应地逐渐增强。

Abstract

: TbF

phosphors were prepared by heating pure natural thenardite with TbF

at 900 ℃ for 20 min in air. Their photoluminescence (PL) spectra were observed under vacuum ultraviolet (VUV)-ultra-violet (UV) light excitation at room temperature. We observed two emission series assigned to the electronic transitions from

and

(J = 6

3 and 2) of Tb

in Na

. The excitation spectrum was consisted of (1) strong bands assigned to the 4f

→4f

n-1

5d transitions (186

190 and 218 nm)

(2) the host absorption (163

200 and 240 nm) and (3) weak bands assigned to the forbidden f-f transitions of Tb

. The relative excitation efficiency in VUV light region is increased with increase of TbF

contents in 0.3%~2.0% range

and the relative excitation efficiency of only the host absorption in UV light region is increased with increase of TbF

contents. This preparation method would be useful for creating new phosphors using pure natural minerals that cannot be synthesized artificially as host crystals.

关键词

Keywords

references

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