Effects of Cr3+ concentration on the optical properties of Cs2NaAlF6 single crystals
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This work is devoted to the study of optical properties of the elpasolite Cs2NaAlF6 with 0.1, 1.0, 3.0, 10.0, 30.0 and 50.0% of Cr3+ ions. The interest in this system lies on the fact that it presents a high quantum yield in the visible and infrared regions and therefore can be considered for laser applications. The photoluminescence and excitation spectra were obtained at 5 and 300 K, while the absorption spectra were measured at 300 K. The spectra at 300 K show broad bands attributed to the Cr3+ ions in two non-equivalent sites, both of them with octahedral coordination, while at 5 K we can observe the vibrational modes of the [CrF6]3- complex. The ensemble of our results lead us to conclude that the material has potential applications as a lasing system.
Original language | English |
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Journal | Journal of Luminescence |
Volume | 134 |
Pages (from-to) | 100-106 |
ISSN | 0022-2313 |
DOIs | |
Publication status | Published - 1 Feb 2013 |
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