Textural and Optical Properties of Ce-Doped YAG/Al2O3 Melt Growth Composite Grown by Micro-Pulling-Down Method

Rayko Simura, Tetsuo Taniuchi, Kazumasa Sugiyama, Tsuguo Fukuda

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Ce-doped YAG/Al2O3 melt-growth composite (MGC) samples were grown by the micro-pulling-down (μ-PD) method, and their physical and chemical properties were investigated. The grown MGC samples exhibit fine-grained granophyric texture at the micron scale. Fluorescence spectra, excited by a blue laser diode, were recorded, and, in particular, the finely textured granophyric MGC sample doped with 0.1 at% Ce and prepared with a growth rate of 3mm/min shows superior fluorescence properties without high-temperature deterioration of fluorescence intensity. The μ-PD method is demonstrated to be applicable for manufacturing finely textured MGC samples with improved luminous efficiency as phosphors for white LEDs.

Original languageEnglish
Pages (from-to)127-131
Number of pages5
JournalHigh Temperature Materials and Processes
Volume37
Issue number2
DOIs
Publication statusPublished - 2018 Jan 26

Keywords

  • 78.55.Hx
  • 81.10.Fq
  • 81.30.-t

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Physical and Theoretical Chemistry

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