Thermal and optical properties of Yb-doped Lu 2 O 3 single crystal grown by the micro-pulling-down method

J. H. Mun, A. Jouini, Akira Yoshikawa, J. H. Kim, T. Fukuda, J. S. Lee

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Undoped and (0, 0.5, 5 mol%) Lu 2 O 3 single crystals were grown by the micro-pulling-down method. Crystals were transparent with yellowish color with 4.2 mm in diameter and 6-9 mm in length. Yb-doped Lu 2 O 3 single crystals have a good compositional homogeneity along the growth axis. Both, thermal diffusivity and heat capacity decrease when the Yb concentration increase. As a result, the calculated thermal conductivity for 5 mol% Yb 3+ -doped Lu 2 O 3 decreases from 14.32 to 12.42 Wm -1 K -1 . We have also investigated the absorption, fluorescence spectra and measured fluorescence lifetimes as a function of the Yb content.

Original languageEnglish
Pages (from-to)636-640
Number of pages5
JournalJournal of Ceramic Processing Research
Volume14
Issue number5
Publication statusPublished - 2013 Jan 1

Keywords

  • Crystal growth from the melt
  • Micro-pulling-down method
  • Rere-earth sesquioxides
  • Thermal conductivity

ASJC Scopus subject areas

  • Ceramics and Composites

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