The role of cerium variable charge state in the luminescence and scintillation mechanism in complex oxide scintillators: The effect of air annealing

M. Nikl, V. Babin, J. A. Mares, K. Kamada, S. Kurosawa, A. Yoshikawa, J. Tous, J. Houzvicka, K. Blazek

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

The influence of annealing in air at elevated temperatures on the absorption, luminescence and scintillation characteristics was studied for a set of Ce-doped aluminum garnet and perovskite single crystals. Positive effects consisting mainly in increase of light yield and decrease of afterglow were found to varying extent in all the materials. It is explained by the positive role of created stable Ce4+ center in scintillation mechanism and by decrease of deep trap concentration based on oxygen vacancies.

Original languageEnglish
Pages (from-to)539-543
Number of pages5
JournalJournal of Luminescence
Volume169
DOIs
Publication statusPublished - 2016 Jan

Keywords

  • Air annealing
  • Aluminum garnets
  • Ce
  • Perovskites
  • Scintillator

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Chemistry(all)
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

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