Crystal growth of LiF/LiYF4 eutectic crystals and their luminescent properties

Kei Nishimoto, Yuui Yokota, Shunsuke Kurosawa, Yutaka Fujimoto, Noriaki Kawaguchi, Kentaro Fukuda, Akira Yoshikawa

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Undoped and 0.5mol% Ce-doped LiF-LiYF4 eutectic crystals were grown by the micro-pulling-down method at different growth rates. The SEM images of all the eutectic crystals showed LiF with rod-like structure in the LiYF4 matrix. The diameter of the rod phase systematically decreased with the increase of the growth rate. The radioluminescence spectra of cerium doped crystal under alpha-ray excitation showed emission peak at 325nm related to Ce3+ 5d-4f transition. The white part in the cathodoluminescence image is considered to be due to Ce3+ ion in LiYF4 phase, according to the scanning electron microscopy (SEM) image in the same region.

Original languageEnglish
Pages (from-to)2117-2121
Number of pages5
JournalJournal of the European Ceramic Society
Volume34
Issue number9
DOIs
Publication statusPublished - 2014 Aug

Keywords

  • Eutectic
  • Light-guide
  • Rod-like
  • Scintillator

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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