Patra, Amitava and Reisfeld, R and Minti, H (1998) Influence of aluminium oxide on intensities of Sm3+ and Pr3+ spectral transitions in sol-gel glasses. Materials Letters, 37 (6). pp. 325-329. ISSN 0167-577X

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Abstract

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.

Item Type:	Article
Uncontrolled Keywords:	sol-gel; silica-alumina glasses; fluorescence; rare earth ions; absorption
Subjects:	Engineering Materials
Divisions:	Sol Gel
Depositing User:	Bidhan Chaudhuri
Date Deposited:	12 Jul 2012 11:34
Last Modified:	12 Jul 2012 11:34
URI:	http://cgcri.csircentral.net/id/eprint/1574

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