Effect of temperature on luminescence and VUV to visible conversion in the YAl3(BO3)4:Dy3+ (YAB:Dy) crystal

G. Dominiak-Dzik, W. Ryba-Romanowski, L. Kovács, E. Beregi

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Spectroscopic properties of the Dy3+-doped YAl 3(BO3)4 crystal were studied from the vacuum-ultraviolet to near-infrared spectral range. Optical results were interpreted in terms of the 4fn, 4fn-15d and charge transfer transitions. It was found that the VUV electronic excitation is transferred to the optically active ions giving emission from the 4F9/2 fluorescent level of Dy3+. The temperature variation of the Dy3+ fluorescence kinetics was observed; the 4F9/2 lifetime increased with increasing temperature. This phenomenon is not usually observed in other rare-earth-doped media. The discussion of dysprosium emission properties and their temperature dependency was based on the assumption that the rates of transitions originating in individual crystal field levels of the 4F9/2 emitting multiplet are significantly different.

Original languageEnglish
Pages (from-to)557-561
Number of pages5
JournalRadiation Measurements
Volume38
Issue number4-6
DOIs
Publication statusPublished - Aug 1 2004

Keywords

  • Luminescence properties
  • VUV to VIS conversion
  • YAl(BO):Dy crystal

ASJC Scopus subject areas

  • Radiation
  • Instrumentation

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