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Up-conversion and photoluminescence in Er3+ single crystal MgAl-spinel

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5 Citations (Scopus)

Abstract

Traditional and up-conversion luminescence of MgAl2O4 single crystal doped with erbium ions obtained by the Verneuil method has been investigated. The time resolved spectral measurements of the green and red up-conversion luminescence bands show that a build-up part is present in the up-conversion luminescence kinetics. This means that energy transfer process is involved in the creation of the luminescence. Considering rather small concentration of Er3+ in the material (0.12 mass %), the expected up-conversion mechanism should be excited state absorption since the average distance between erbium ions is high. The above-mentioned considerations suggest that clustering of the activator ions is present in the material, which is supported by SEM analysis.

Original languageEnglish
Pages (from-to)106-110
Number of pages5
JournalPhysics Procedia
Volume76
DOIs
Publication statusPublished - 2015
Event17th International Conference on Luminescence and Optical Spectroscopy of Condensed Matter, ICL 2014 - Wroclaw, Poland
Duration: 13 Jul 201418 Jul 2014

Keywords

  • Energy transfer
  • Erbium
  • MgAlO
  • Up-conversion luminescence

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