首页 | 本学科首页   官方微博 | 高级检索  
     


Stabilization of Eu2+ in KLuS2 crystalline host: an EPR and optical study
Authors:V. Laguta  M. Buryi  L. Havlák  J. Bárta  V. Jarý  M. Nikl
Affiliation:1. Institute of Physics AS CR, , 162 00 Prague, Czech Republic;2. Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, , 115 19 Prague, Czech Republic
Abstract:
Electron paramagnetic resonance and luminescence spectroscopies were applied to study the incorporation and charge stability of Eu2+ luminescent ions in single crystals of KLuS2:Eu found in an earlier optical study [Jary et al., Chem. Phys. Lett. 574 , 61 (2013)]. The location of Eu2+ in the structure was unambiguously determined and three different centers were identified and described. Two of these centers correspond to substitution of Eu2+ for K+ and Lu3+ ions providing thus effective mechanism for Eu2+ 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)
Keywords:KLuS2  Eu2+ center  luminescence  solid state lighting  electron paramagnetic resonance
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号