We attained heavy Tb3+-doping into a SiO2 matrix up to 22.8 mol% in Tb2O3 concentration by sol-gel process using terbium nitrate. Co-doping of Al3+ and/or Na+ led to the improvement on photoluminescence characteristics: The 5D3 emission was observed at low Tb3+ concentration, indicating an inter-ionic resonant energy transfer, and the intensity of 5D4 emission increased up to 10 mol% with increasing Tb3+ concentration in co-doped samples. The effect of Al3+ and Na+ on the glass network and neighboring configuration of Tb3+ is discussed based on the optical spectra.
|ジャーナル||Journal of Luminescence|
|出版ステータス||Published - 2000 5月|
|イベント||International Conference on Luminescence and Optical Spectroscopy of Condensed Matter (ICL'99) - Osaka, Jpn|
継続期間: 1999 8月 23 → 1999 8月 27
ASJC Scopus subject areas
- 化学 (全般)