TY - JOUR
T1 - Growth and characterization of Yb3+-doped YAlO3 fiber single crystals grown by the modified micro-pulling-down method
AU - Shim, J. B.
AU - Yoshikawa, A.
AU - Nikl, M.
AU - Solovieva, N.
AU - Pejchal, J.
AU - Yoon, D. H.
AU - Fukuda, T.
PY - 2003/9
Y1 - 2003/9
N2 - 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.
AB - 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.
KW - A1. Charge transfer luminescence
KW - A2. Micro-pulling-down method
KW - B1. Yb doping
KW - B1. Yttrium aluminate
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U2 - 10.1016/S0022-0248(03)01360-5
DO - 10.1016/S0022-0248(03)01360-5
M3 - Article
AN - SCOPUS:0042671225
SN - 0022-0248
VL - 256
SP - 298
EP - 304
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
IS - 3-4
ER -