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 language | English |
|---|---|
| Pages (from-to) | 636-640 |
| Number of pages | 5 |
| Journal | Journal of Ceramic Processing Research |
| Volume | 14 |
| Issue number | 5 |
| Publication status | Published - 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