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Stabilization of Eu 2+ in KLuS 2 crystalline host: an EPR and optical study
Author(s) -
Laguta V.,
Buryi M.,
Havlák L.,
Bárta J.,
Jarý V.,
Nikl M.
Publication year - 2014
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201409248
Subject(s) - electron paramagnetic resonance , luminescence , ion , paramagnetism , crystallography , chemistry , resonance (particle physics) , spectral line , materials science , nuclear magnetic resonance , atomic physics , condensed matter physics , physics , optoelectronics , organic chemistry , astronomy
Electron paramagnetic resonance and luminescence spectroscopies were applied to study the incorporation and charge stability of Eu 2+ luminescent ions in single crystals of KLuS 2 :Eu found in an earlier optical study [Jary et al., Chem. Phys. Lett. 574 , 61 (2013)]. The location of Eu 2+ in the structure was unambiguously determined and three different centers were identified and described. Two of these centers correspond to substitution of Eu 2+ for K + and Lu 3+ ions providing thus effective mechanism for Eu 2+ incorporation due to the charge self‐compensation in the lattice. The observed luminescence spectra are consistent with the results of electron paramagnetic resonance experiment and can be decomposed accordingly. (© 2014 WILEY‐VCH Verlag GmbH &Co. KGaA, Weinheim)

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