Repozytorium
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Kolekcje
Inne
Energy-level calculations for Pr3+ in K2LaBr5 host. Study of excited state dynamics.
Autorzy
Rok wydania
2008
Czasopismo
Journal of Alloys and Compounds
Numer woluminu
451
Strony
104-110
DOI
10.1016/j.jallcom.2007.04.090
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
A series of potassium lanthanum praseodymium ternary bromides, K2La1−xPrxBr5 (0.02 ≤ x ≤ 1) single crystals was grown by the Bridgman technique. The high resolution absorption, luminescence and excitation spectra were measured at 4, 77 and 293 K under different excitation sources, including VUV synchrotron radiation. The Stark components determined from the absorption and emission spectra were simulated by using a phenomenological crystal-field model for 4f2 configuration of the Pr3+ ion in K2PrBr5. The comparison is made with earlier reported data for Pr3+ in K2PrCl5 crystal. The decay times of the emission from the 1D2 and 3P0 levels were measured and excited states dynamic is analysed.
Słowa kluczowe
Potassium lanthanum ternary bromide, Crystal-field
Adres publiczny
https://doi.org/10.1016/j.jallcom.2007.04.090
Strona internetowa wydawcy
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