Site selective luminescence of Eu3+ ions in K2Mg(SO4)2•6H2O crystal

被引：14

作者：

Marzougui, H. ^{[1
]}

Martin, I. R. ^{[2
,3
]}

Attia-Essaies, S. ^{[1
,4
]}

Ben Hassen-Chehimi, Dalila ^{[1
]}

Lalla, E. ^{[2
]}

Leon-Luis, S. F. ^{[2
,3
]}

机构：

[1] Univ Carthage, Fac Sci Bizerte, Dept Chim, Lab Applicat Chim Ressources & Subst Nat & Enviro, Zarzouna 7021, Bizerte, Tunisia

[2] Univ La Laguna, Dept Fis Fundamental & Expt Elect & Sistemas, E-38200 Tenerife, Spain

[3] Univ La Laguna, IMN, Malta Consolider Team, E-38200 Tenerife, Spain

[4] Ctr Natl Rech Sci Mat, Lab Physicochim Mat & Leurs Applicat, Tunis, Tunisia

来源：

OPTICAL MATERIALS | 2015年 / 46卷

关键词：

Chemical synthesis; Crystal structure; Luminescence; Infrared spectroscopy (IR); SPECTRA; SR; BA; FLUORESCENCE; GLASS; TIO2; CA; IR;

D O I：

10.1016/j.optmat.2015.04.041

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Eu3+ doped K2Mg(SO4)(2)center dot 6H(2)O crystal was prepared by evaporation method at room temperature. A complete structure characterization including X-ray diffraction, Raman and infrared was carried out. The results reveal that this crystal crystallizes in a monoclinic structure and the most active phonons are associated with vibrations of molecular water and sulfate environments. On the other hand, the emission spectrum indicates that Eu3+ ions occupy two different sites. Therefore, a study about the luminescence from each local environment is presented. The emission spectra and luminescence decays of Eu3+ ions indicate than there are not energy transfer processes between both sites. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：339 / 344

页数：6

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