Infrared photoluminescence of sol-gel spin-coated films of rare-earth activated lanthanum silicate

被引：4
|
作者：
Juwhari, H. K. [2 ]
Kailani, M. H. [3 ]
Lahlouh, B. I. [2 ]
Abedrabbo, S. A. [2 ]
Saleh, K. A. [2 ]
White, W. B. [1 ]
机构：
[1] Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA
[2] Univ Jordan, Dept Phys, Amman 11942, Jordan
[3] Univ Jordan, Dept Chem, Amman 11942, Jordan
来源：
MATERIALS LETTERS | 2012年 / 87卷
关键词：
Phosphors; La-silicate; Sol-gel processing; Luminescence; Er3+-activator;
D O I：
10.1016/j.matlet.2012.07.095
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A series of phosphors with composition La9.33-x-y-zSi6O24O2 (x=Er, y=Ce, z=Yb) with the silicate oxyapatite structure were synthesized by a sol-gel spin-coating technique. The products formed as well-crystallized laminae 6-8 nm thick. Spectroscopic measurements in the near-infrared showed that excitation through Ce3+ enhances 1.53 mu m emission of Er3+ by a factor of 50, while the effect of Yb3+ is to quench the luminescence. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：80 / 83
页数：4
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