Growth and characterization of Yb3+-doped YAlO3 fiber single crystals grown by the modified micro-pulling-down method

J. B. Shim, A. Yoshikawa, M. Nikl, N. Solovieva, Jan Pejchal, D. H. Yoon, T. Fukuda

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

The Yb3+-doped YAlO3 fiber single crystals were grown by the modified micro-pulling-down method with the radiofrequency system. The starting melt compositions of (Y1-xYbx)AlO3 were varied as x=0.05, 0.1 and 0.2. The best Yb3+-doped YAlO3 fiber single crystals were obtained for pulling-down rate equal to 0.12mm/min. The grown fiber crystals were transparent and nearly colorless. The purpose of this study was to reveal the conditions of twin and inclusion-free growth of the Yb3+-doped YAlO3 single crystals. To investigate the homogeneity of the grown crystals, distribution coefficient of the Y and Yb ions was measured. The transmission, photo- and radioluminescence features of Yb3+-doped YAlO3 crystal were also investigated in this study. Due to very fast charge transfer luminescence of Yb3+ in near-UV-visible spectral range and higher density of Yb-rich YAlO3, such material is promising candidate for fast scintillators.

Original languageEnglish
Pages (from-to)298-304
Number of pages7
JournalJournal of Crystal Growth
Volume256
Issue number3-4
DOIs
Publication statusPublished - 2003 Sep 1

Keywords

  • A1. Charge transfer luminescence
  • A2. Micro-pulling-down method
  • B1. Yb doping
  • B1. Yttrium aluminate

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Growth and characterization of Yb<sup>3+</sup>-doped YAlO<sub>3</sub> fiber single crystals grown by the modified micro-pulling-down method'. Together they form a unique fingerprint.

Cite this