Influence of aluminium oxide on intensities of Sm3+ and Pr3+ spectral transitions in sol-gel glasses

被引：39

作者：

Patra, A

Reisfeld, R ^{[1
]}

Minti, H

机构：

[1] Hebrew Univ Jerusalem, Dept Inorgan & Analyt Chem, IL-91940 Jerusalem, Israel

[2] Cent Glass & Ceram Res Inst, Sol Gel Div, Calcutta 700032, W Bengal, India

来源：

MATERIALS LETTERS | 1998年 / 37卷 / 06期

关键词：

sol-gel; silica-alumina glasses; fluorescence; rare earth ions; absorption;

D O I：

10.1016/S0167-577X(98)00114-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The transition probabilities of Pr, Sm and Nd ions in sol-gel glasses are increased by addition of Al3+ as a result of lowering of the site symmetry in which the ion is situated. The addition of Al has even a greater effect on luminescent efficiencies than on absorption strengths. The effect is a result of a decrease of aggregation of the ions in presence of Al circumventing the cross-relaxation process. (C) 1998 Elsevier Science B.V, All rights reserved.

引用

页码：325 / 329

页数：5

共 13 条

[1] CHARACTERIZATION OF DOPED SOL-GEL DERIVED SILICA HOSTS FOR USE IN TUNABLE GLASS LASERS [J].