Spectroscopic properties of Er3+ and Ce3+ co-doped tellurite glasses

被引：38
|
作者：
Sasikala, T. [1 ]
Moorthy, L. Rama [1 ,2 ]
Pavani, K. [1 ]
Chengaiah, T. [1 ]
机构：
[1] Sri Venkateswara Univ, Dept Phys, Tirupati 517502, Andhra Pradesh, India
[2] Chadalawada Venkata Subbaiah Engn Coll, Dept Phys, Tirupati 517506, Andhra Pradesh, India
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2012年 / 542卷
关键词：
Reabsorption; Luminescence; Judd-Ofelt theory; Phonon-assisted cross-relaxation; RARE-EARTH IONS; UP-CONVERSION LUMINESCENCE; 980; NM; OPTICAL-TRANSITIONS; ENERGY-LEVELS; ABSORPTION; SPECTRA; ENHANCEMENT; INTENSITIES; PARAMETERS;
D O I：
10.1016/j.jallcom.2012.07.013
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Optical absorption, near infrared emission and FTIR studies were carried out for the glasses prepared with chemical composition of (61.5-x)TeO2 + 25ZnO + 8K(2)O + 5CaO + 0.5Er(2)O(3) + xCe(2)O(3) (TZKCEr05Cex; x = 0, 0.1, 0.5, 1.0 mol%) by the conventional melt quenching technique. Judd-Ofelt analysis has been adopted for the experimental oscillator strengths of the absorption bands of 0.5 mol% of Er3+ ions in singly doped TZKC glass. From the Judd-Ofelt intensity parameters (Omega(lambda)), different radiative parameters were evaluated and the effect of Ce3+ ions concentration on the Er3+ ion emission intensities of I-4(13/2) -> I-4(15/2) transition has been discussed. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：271 / 275
页数：5
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