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

Research output: Contribution to journalArticlepeer-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 languageEnglish
Pages (from-to)325-329
Number of pages5
JournalMaterials Letters
Volume37
Issue number6
DOIs
StatePublished - Dec 1998

Keywords

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

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