Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/27502
Title: The luminescence microspectroscopy of Pr3+-doped LiBaAlF 6 and Ba3Al2F12 crystals
Authors: Omelkov, S. I.
Kiisk, V.
Sildos, I.
Kirm, M.
Nagirnyi, V.
Pustovarov, V. A.
Isaenko, L. I.
Lobanov, S. I.
Пустоваров, В. А.
Issue Date: 2013
Citation: The luminescence microspectroscopy of Pr3+-doped LiBaAlF 6 and Ba3Al2F12 crystals / S. I. Omelkov, V. Kiisk, I. Sildos [et al.] // Radiation Measurements. — 2013. — Vol. 56. — P. 49-53.
Abstract: The combined luminescence and Raman-scattering microspectroscopy technique allows separate spectroscopic studies on several crystal phases in mixed compounds. A mixed sample of LiBaAlF6 and Ba3Al 2F12 doped with Pr was studied. The Pr3+ concentration was found to be much higher in the Ba3Al 2F12 phase. Several non-equivalent Pr3+ centers are present in both compounds, however, only in Ba3Al 2F12 there are several non-equivalent crystallographic positions of Ba. In LiBaAlF6 non-equivalent Pr3+ centers appear because of complicated scheme for charge compensation of ( PrBa3+)+. Possible reasons of Ba3Al2F 12 formation in the process of Pr3+:LiBaAlF6 growth are discussed. An excess of LiF in melt is assumed to produce ( LiBa+)- antisite defects as a charge compensation for ( PrBa3+)+ substitution. © 2013 Elsevier Ltd. All rights reserved.
Keywords: BA 3AL2F12
LIBAALF6
MICROSPECTROSCOPY
PHOTOLUMINESCENCE
PR3+ IONS
ANTI-SITE DEFECT
CHARGE COMPENSATION
CRYSTAL PHASIS
CRYSTALLOGRAPHIC POSITION
LIBAALF<SUB>6</SUB>
MICRO SPECTROSCOPY
MIXED SAMPLES
SPECTROSCOPIC STUDIES
ALUMINUM
LUMINESCENCE
PHOTOLUMINESCENCE
POINT DEFECTS
SPECTROSCOPIC ANALYSIS
BARIUM COMPOUNDS
URI: http://hdl.handle.net/10995/27502
SCOPUS ID: 84884814961
WOS ID: WOS:000325671400012
PURE ID: 908248
ISSN: 1350-4487
DOI: 10.1016/j.radmeas.2013.01.030
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS

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