The luminescence microspectroscopy of Pr3+-doped LiBaAlF6 and Ba3Al2F12 Crystals / Omelkov S. I.,Kiisk V.,Sildos I.,Kirm M.,Nagirnyi V.,Pustovarov V. A.,Isaenko L. I.,Lobanov S. I. // RADIATION MEASUREMENTS. - 2013. - V. 56, l. SI. - P. 49-53.

ISSN/EISSN:

1350-4487 / нет данных

Type:

Article; Proceedings Paper

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 Ba3Al2F12 doped with Pr was studied. The Pr3+ concentration was found to be much higher in the Ba3Al2F12 phase. Several non-equivalent Pr3+ centers are present in both compounds, however, only in Ba3Al2F12 there are several non-equivalent crystallographic positions of Ba. In LiBaAlF6 non-equivalent Pr3+ centers appear because of complicated scheme for charge compensation of (Pr-Ba(3+))(+). Possible reasons of Ba3Al2F12 formation in the process of Pr3+:LiBaAlF6 growth are discussed. An excess of LiF in melt is assumed to produce (Li-Ba(+))(-) antisite defects as a charge compensation for (Pr-Ba(3+))(+) substitution. 2013 Elsevier Ltd. All rights reserved.

Author keywords:

Photoluminescence; Microspectroscopy; LiBaAlF6; Ba3Al2F12; Pr3+ ions

DOI:

10.1016/j.radmeas.2013.01.030

Web of Science ID:

ISI:000325671400012

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	SEP
Note	8th International Conference on Luminescence Detectors and Transformers of Ionizing Radiation (LUMDETR), Martin Luther Univ Halle Wittenberg, Halle, GERMANY, SEP 10-14, 2012
Organization	Ctr Innovat Competence SiLi Nano
Publisher	PERGAMON-ELSEVIER SCIENCE LTD
Address	THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Language	English
Research-Areas	Nuclear Science \& Technology
Web-of-Science-Categories	Nuclear Science \& Technology
Author-Email	omelkov@ut.ee
ResearcherID-Numbers	Kirm, Marco/M-1533-2016 Nagirnyi, Vitali/G-9619-2017 Isaenko, Ludmila/H-7620-2013 Lobanov, Sergey/A-5379-2014 Isaenko, Ludmila/A-5272-2014
ORCID-Numbers	Kirm, Marco/0000-0002-1833-6894 Nagirnyi, Vitali/0000-0001-6833-6406 Kiisk, Valter/0000-0002-9078-9038
Number-of-Cited-References	15
Usage-Count-Since-2013	11
Journal-ISO	Radiat. Meas.
Doc-Delivery-Number	234VC