| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7839851 | Journal of Luminescence | 2018 | 17 Pages |
Abstract
In this work the fabrication and the photoluminescence properties of CaxSr1-xAl2O4 nanocrystals doped with Ca, Tb and Yb are investigated. The photoluminescence quantum yield measured at 980â¯nm of the Yb doped CaxSr1-xAl2O4 nanocrystals is found to be 8% for an excitation in the ultraviolet range. However the quantum efficiency decreases with the insertion of Tb. Photoluminescence excitation experiments and time-resolved photoluminescence both conclusively demonstrate that no energy transfer between Tb and Yb occurs in this host matrix.
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Authors
T. Fix, H. Rinnert, J.-L. Rehspringer, A. Slaoui,