Properties of F(Br-) Centers in BaFBr:Eu2+ Doped with Al3+

YU Hua; XIONG Guang-nan; CHEN Shi-ming; YAN Xiao-min; ZHENG Zhen; ZHANG Li-ping

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Properties of F(Br^-) Centers in BaFBr:Eu²⁺ Doped with Al³⁺

更新时间：2020-08-11

- Properties of F(Br^-) Centers in BaFBr:Eu²⁺ Doped with Al³⁺
- Chinese Journal of Luminescence Vol. 23, Issue 6, Pages: 599-603(2002)
- 作者机构：
  
  1. 天津理工学院, 材料物理研究所天津,300191
  2. 复旦大学, 分析测试中心上海,200433
- 作者简介：
- 基金信息：
  
  Project supported by Tianjin Scientific and Educational Commissions' Foundation for
- DOI：
  CLC： O482.31
- Received：11 September 2002，
  
  Revised：2002-10-20，
  
  Published：20 November 2002
- 稿件说明：
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余华, 熊光楠, 陈士明, 严晓敏, 郑震, 张丽平. Al3+掺杂BaFBr:Eu2+中F(Br-)心的性质[J]. 发光学报, 2002,23(6): 599-603

YU Hua, XIONG Guang-nan, CHEN Shi-ming, YAN Xiao-min, ZHENG Zhen, ZHANG Li-ping. Properties of F(Br-) Centers in BaFBr:Eu2+ Doped with Al3+[J]. Chinese Journal of Luminescence, 2002,23(6): 599-603
余华, 熊光楠, 陈士明, 严晓敏, 郑震, 张丽平. Al3+掺杂BaFBr:Eu2+中F(Br-)心的性质[J]. 发光学报, 2002,23(6): 599-603 DOI：

YU Hua, XIONG Guang-nan, CHEN Shi-ming, YAN Xiao-min, ZHENG Zhen, ZHANG Li-ping. Properties of F(Br-) Centers in BaFBr:Eu2+ Doped with Al3+[J]. Chinese Journal of Luminescence, 2002,23(6): 599-603 DOI：

摘要

作为光激励发光的首选材料BaFBr:Eu

在其中掺杂一定量的Al

后

其光激励发光谱向长波方向发生了较大的红移现象。红移的机理是掺杂的Al

离子取代了BaFBr:Eu

晶格中的Ba

离子

且处于F(Br

)心的次近邻位所致。本文利用喇曼光谱和电子顺磁共振谱对受掺杂Al

微扰的F(Br

)心的结构进行了研究

首次在喇曼光谱的高频移区观测到了由于掺杂Al

所引起的新结构的产生

通过电子顺磁共振谱表征了在BaFBr:Eu

中Al

与F(Br

)心的相对位置

并且得出F(Br

)心与O

心存在着空间相关性。

Abstract

BaFBr:Eu

is a good photostimulated luminescent(PSL) material. The experiments show that compared with BaFBr:Eu

the phosphor BaFBr:Eu

doped with Al

has strong red-shift PSL peaks. The red-shift mechanism is considered as the replacement of Ba

by Al

doped in BaFBr:Eu

and the location of Al

is at next neighborhood to F(Br

) centers. The spectra of Raman scattering and electron paramagnetic resonance(EPR) were used to investigate the structure of F(Br

) centers effected by Al

. The new Raman peak structure is found at high frequency region due to the fact that Al

doped in BaFBr:Eu

. The site relationship of Al

and F(Br

) centers is observed and the spatial correlation between F (Br

) centers and O

centers was studied by EPR spectra.

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