Luminescence spectroscopy of scintillating glasses doped with Tb3+/Ce3+ with different concentrations of cerium under photo- and electron excitation

D. Valiev, Elena Fedorovna Polisadova, Sergey Alexandrovich Stepanov, K. Belikov, N. Yegorova, H. Othman, V. Vaganov

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Abstract The luminescence of Li2O-B2O3-P2O5-CaF2 scintillation glass doped Tb3+, Ce3+ under electron beam excitation are investigated. Changing the cerium concentration of 0.2-1 wt% leads to an increase in luminescence intensity of Ce3+ and Tb3+ ions. Luminescence decay of cerium time is 30 ns and weakly depends on the ion concentration and the density of the excitation energy. The luminescence spectrum of the Tb3+ ions and excitation spectrum are dependent on the concentration of Ce3+. The radiative level of cerium ion does not participate in the process of energy transfer from the cerium to terbium. The transfer of energy between Ce3+ and Tb3+ occurs non-radiatively.

Original languageEnglish
Article number13203
Pages (from-to)128-133
Number of pages6
JournalJournal of Luminescence
Volume162
DOIs
Publication statusPublished - 1 Jan 2015

Keywords

  • Ce
  • Electron excitation
  • Energy transfer
  • Scintillating glasses
  • Tb
  • Time-resolved luminescence spectroscopy

ASJC Scopus subject areas

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

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