Crystal growth and scintillating properties of (Pr,Si)-doped YAlO 3

M. Zhuravleva, A. Novoselov, E. Mihokova, J. A. Mares, A. Vedda, M. Nikl, A. Yoshikawa

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

This paper deals with Pr-doped and Pr, Si-codoped YAlO3 single crystal growth by the micro-pulling-down method and investigation of their spectroscopic and scintillating properties. The Pr3+ 5d-4f radioluminescence intensity is more than 10 times higher than that of Bi 4Ge3O12 standard sample, but the Si-codoping decreases it. Absorption spectra of as-grown and air-annealed Si,Pr-codoped YAlO3 samples show along with an onset of 4f-5d transition round 230 nm the induced absorption band at 400 nm which possibly related to a hole center absorption (Pr4+ or O-). Thermoluminescence measurements above the room temperature were performed in order to monitor deep electron traps. Strong concentration dependence of thermoluminescence was observed for Pr:YAlO3 glow curves.

Original languageEnglish
Pages (from-to)1324-1328
Number of pages5
JournalCrystal Research and Technology
Volume42
Issue number12
DOIs
Publication statusPublished - 2007 Dec 1

Keywords

  • Codoping
  • Induced absorption
  • Micro-pulling-down-method
  • Oxide scintillator
  • Thermoluminescence

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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