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| Content Provider | Springer Nature Link |
|---|---|
| Author | Ryba Romawski, W. Gołvab, S. Dominiak Dzik, G. Solarz, P. |
| Copyright Year | 2001 |
| Abstract | Polycrystalline samples of europium-doped K5Li2GdF10 have been obtained by a slow cooling of melted compound and investigated using spectroscopy methods. Luminescence from the 5 D 2 level of Eu3+ is found to be weak. Intense visible emission upon excitation into the 5 D 2 or higher energy levels has been attributed to overlapping transitions from long-lived 5 D 1 and 5 D 0 levels. A strong increase of the 5 D 0 emission at the expense of the 5 D 1 emission occurs between 5 K and 25 K without significant change of the 5 D 1 lifetime. To account for this, it is supposed that both the radiative and the nonradiative transition rates are temperature-dependent. Efficient energy transfer from the 6 G J levels of Gd3+ to Eu3+ ions has been evidenced by excitation spectra in the VUV region and VUV-excited luminescence. It has been concluded that the cross relaxation contributes to the energy-transfer process. |
| Starting Page | 581 |
| Ending Page | 586 |
| Page Count | 6 |
| File Format | |
| ISSN | 09478396 |
| Journal | Applied Physics A |
| Volume Number | 74 |
| Issue Number | 4 |
| e-ISSN | 14320630 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2002-04-01 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Materials Science |
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