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

Amitava Patra; Renata Reisfeld; Harry Minti

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

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

Amitava Patra
, Renata Reisfeld^*
, Harry Minti

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

44 Scopus citations

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.

Original language	English
Pages (from-to)	325-329
Number of pages	5
Journal	Materials Letters
Volume	37
Issue number	6
DOIs	https://doi.org/10.1016/S0167-577X(98)00114-1
State	Published - Dec 1998

Keywords

Absorption
Fluorescence
Rare earth ions
Silica-alumina glasses
Sol-gel

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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.",

keywords = "Absorption, Fluorescence, Rare earth ions, Silica-alumina glasses, Sol-gel",

author = "Amitava Patra and Renata Reisfeld and Harry Minti",

year = "1998",

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AU - Patra, Amitava

AU - Reisfeld, Renata

AU - Minti, Harry

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Y1 - 1998/12

N2 - 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.

AB - 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.

KW - Absorption

KW - Fluorescence

KW - Rare earth ions

KW - Silica-alumina glasses

KW - Sol-gel

UR - https://www.scopus.com/pages/publications/0032296288

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JO - Materials Letters

JF - Materials Letters

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ER -

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

Abstract

Keywords

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