Abstract
We report on the photoluminescence (PL) properties of europium (Eu) and ytterbium (Yb) co-doped SiO2 thin film. The Eu (both Eu2+ and Eu3+) PL and the Yb3+ PL is co-related under different temperature annealing. However, upon 1100°C anneal, the Eu PL intensity is significantly stronger than other temperatures anneal. Transmission electron microscopy, X-ray photoelectron spectroscopy and X-ray diffraction results, suggest that meta-stable Eu2+-related silicates (EuSiO3) have formed in the oxide as well as the formation of Yb2Si 2O7.
| Original language | English |
|---|---|
| Pages (from-to) | 179-186 |
| Number of pages | 8 |
| Journal | Integrated Ferroelectrics |
| Volume | 151 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 12 Feb 2014 |
Keywords
- Rare earth co-doping
- down-conversion luminescence
- silicates