Growth and luminescent properties of Ce-doped LiF/LiLuF4 eutectic fibers grown by micro-pulling-down method

Yuui Yokota, Shunsuke Kurosawa, Kei Nishimoto, Valery Chani, Akira Yoshikawa

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

The undoped and Ce-doped LiF/LiLuF4 eutectic fibers with various ratios of LuF3 to LiF were grown by the micro-pulling-down method for their application as neutron scintillators with light guiding structure. The differential thermal analysis (DTA) of undoped eutectic materials indicated that the eutectic point of LiF/LiLuF4 was positioned around LiF 80mol%-LuF3 20mol% composition. Some of the as-produced eutectic solids had rod-like regular array structures. This was observed using SEM images of cross-sectional and parallel cuts of the grown solids. In the range of x≥0.28, the dendrites appeared between the eutectic areas. Ce doped LiF/LiLuF4 eutectic fibers demonstrated two emission peaks around 310 and 326nm in the photoluminescence spectrum, and the decay time of the emission at 326nm was 32.3ns.

Original languageEnglish
Pages (from-to)2095-2099
Number of pages5
JournalJournal of the European Ceramic Society
Volume34
Issue number9
DOIs
Publication statusPublished - 2014 Aug

Keywords

  • Eutectic fibers
  • Micro-pulling-down method
  • Neutron
  • Scintillator

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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