Effect of irradiation on photoluminescence and optical absorption spectra of Li2B4O7:Mn and Li2B4O7:Ag single crystals

A. Kelemen, M. Ignatovych, V. Holovey, T. Vidóczy, P. Baranyai

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Effects induced by high-dose irradiation on manganese- and silver-doped Li2B4O7 (lithium tetraborate, LTB) single crystals were monitored by photoluminescence and optical absorption spectroscopy. High-dose (1.0×103 and 1.2×104 Gy) irradiation of the samples was performed using high-energy, short-time (4 MeV, 2.6 μs) electron pulses of a linear electron accelerator. Changes in the oxidation states of dopants were revealed. Recharging of manganese Mn2+→Mn3+ and Ag+→Ag0 were observed. Ionization process Mn2+→Mn3++e- and creation of Ag0-nanoparticles are supposed.

Original languageEnglish
Pages (from-to)1531-1534
Number of pages4
JournalRadiation Physics and Chemistry
Volume76
Issue number8-9
DOIs
Publication statusPublished - Aug 1 2007

Keywords

  • Doped lithium tetraborate
  • Ionizing radiation
  • Manganese
  • Optical absorption
  • Photoluminescence
  • Silver

ASJC Scopus subject areas

  • Radiation

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