Abstract
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.
Original language | English |
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Pages (from-to) | 676-678 |
Number of pages | 3 |
Journal | Journal of Luminescence |
Volume | 87 |
DOIs | |
Publication status | Published - 2000 May |
Externally published | Yes |
Event | International Conference on Luminescence and Optical Spectroscopy of Condensed Matter (ICL'99) - Osaka, Jpn Duration: 1999 Aug 23 → 1999 Aug 27 |
ASJC Scopus subject areas
- Biophysics
- Atomic and Molecular Physics, and Optics
- Chemistry(all)
- Biochemistry
- Condensed Matter Physics