Growth and luminescence properties of Pr-doped Lu3(Ga,Al) 5O12 single crystals

Hiraku Ogino, Akira Yoshikawa, Martin Nikl, Jan Pejchal, Tsuguo Fukuda

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

Single crystals with the nominal composition of (Pr0.01,Lu 0.99)3(Gax,Al1-x)5O 12 (Pr:LuGAG) were grown by the micropulling-down (u-PD) method with RF heating and their luminescence properties were characterized. Transparent and crack free crystals that were slightly yellowish green were obtained. Lattice constants and densities systematically increased with increasing of Ga concentration. The luminescence properties of Pr:LuGAG were characterized by photoluminescence spectra and decays, radioluminescence spectra and light yield measurements. 5d-4f luminescence was observed for the x < 0.6 samples. It was found that the 5d-4f emission of Pr3+ is quenched only slightly up to x < 0.4 whereas density systematically increased in the range of 0 < x < 1.0.

Original languageEnglish
Pages (from-to)3514-3517
Number of pages4
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume46
Issue number6 A
DOIs
Publication statusPublished - 2007 Jun 6

Keywords

  • 5d-4f luminescence of Pr
  • Growth from melt
  • Scintillator materials
  • Single crystal
  • Solid solutions
  • μ-PD method

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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