Abstract
Enhanced 2 μm and upconversion emission from Ho3+-Yb3+codoped oxyfluoride silicate glass ceramics containing nanocrystals Ba2YbF7was demonstrated. Ho3+-Yb3+codoped oxyfluoride silicate glass and glass ceramics containing nanocrystals Ba2YbF7were fabricated. Fluoride nanocrystals Ba2YbF7were successfully precipitated in glass matrix, which was confirmed by the X-ray diffraction (XRD), and transmission electron microscopy (TEM) with energy dispersive X-ray (EDX) spectrometer results. 2 μm and upconversion emissions were obtained from these glass examples under 980 nm excitation. Compared with the precursor glass, enhanced 2 μm and upconversion luminescence was measured in the glass ceramics, which were due to scattering by the formed nanocrystals, lower phonon energy obtained in the nanocrystals and efficient Yb3+-Ho3+interionic interactions. Therefore, the material investigated in this study could find potential application in 2 μm laser gain media or upconversion light material.
| Original language | English |
|---|---|
| Pages (from-to) | 13-16 |
| Number of pages | 4 |
| Journal | Journal of Non-Crystalline Solids |
| Volume | 361 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Feb 2013 |
Keywords
- 2 μm
- Glass ceramics
- Ho 3+
- Nanocrystals
- Upconversion luminescence
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Condensed Matter Physics
- Materials Chemistry