Spectral study on manganese- and silver-doped lithium tetraborate phosphors

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

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Abstract

Manganese- and silver-doped lithium tetraborate (LTB) single crystal and glassy phosphors with different dopant contents were studied. Optical absorption, steady-state and time-resolved photoluminescence (PhL) techniques were used for spectral characterization of samples. Optical absorption, as well as PhL excitation and emission spectra of LTB:Mn single crystal, revealed that manganese is present only in the form of Mn2+ions, while in the glassy LTB:Mn simultaneous presence of Mn2+ and Mn3+ ions was detected. Optical absorption and PhL spectral characterization of LTB:Ag single crystal showed that only one type of Ag1+ ions are absorbing and emitting centers while in the LTB:Ag glassy samples the presence of at least two non-equivalent surrounding of Ag1+ ions was revealed.

Original languageEnglish
Pages (from-to)1527-1530
Number of pages4
JournalRadiation Physics and Chemistry
Volume76
Issue number8-9
DOIs
Publication statusPublished - Aug 1 2007

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Keywords

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

ASJC Scopus subject areas

  • Radiation

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