| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5441515 | Journal of Non-Crystalline Solids | 2017 | 5 Pages |
Abstract
The luminescence of Li2O-B2O3-P2O5-CaF2 glass doped with Tb3Â +/Eu3Â + under electron beam excitation have been investigated in detail. The excitation spectra, photoluminescence (PL), pulse cathodoluminescence (PCL) and luminescence decay kinetics were analyzed. The energy transfer efficiency from Tb3Â + to Eu3Â + ions was found to increase at increased concentration of Eu3Â + ions. As the concentration of europium grew, the luminescence quenching was observed. The energy transfer from Tb3Â + to Eu3Â + was observed to occur through level 5D4 of terbium ions. It is shown that the luminescence decay kinetics of terbium ions at 485, 544, 622 and 700Â nm depends on europium concentration.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
D. Valiev, K. Belikov,