| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8161309 | Physica B: Condensed Matter | 2018 | 13 Pages |
Abstract
Er3+/Tm3+ doped and codoped Na2O-SiO2-ZnO (NSZO) glasses were prepared by the conventional melt-quenching method. The amorphous nature of the prepared glasses was confirmed by the X-ray diffraction analysis. The optical absorption spectrum displayed several peaks, which correspond to Er3+ and Tm3+ dopant ions embedded into the NSZO glass. Both dopants experienced upconversion emission under 980Â nm excitation. Efficient energy transfer from Er3+ to Tm3+ was observed in the co-doped samples to enhance the near infrared emission of the Tm3+ ions.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Vinod Kumar, Anurag Pandey, O.M. Ntwaeaborwa, H.C. Swart,