Emission properties of nanostructured Eu3+ doped zinc aluminate spinels

被引:61
作者
Strek, M [1 ]
Deren, P [1 ]
Bednarkiewicz, A [1 ]
Zawadzki, M [1 ]
Wrzyszcz, J [1 ]
机构
[1] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50442 Wroclaw, Poland
关键词
Eu3+ doping; ZnAl2O4 spinel powders;
D O I
10.1016/S0925-8388(99)00696-9
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The preparation of nanostructured ZnAl2O4 spinel powders doped with Eu3+ ions obtained by a hydrothermal method is described. XRD analyses demonstrated that the powders were single-phase spinel nanopowders with high crystallite dispersion. The averaged spinel particle size was determined to be 6 nm as prepared and it increased up to 8 nm for calcination at 500 degrees C, The emission spectra of Eu3+ ions measured for the samples calcinated at 500 degrees C demonstrated inhomogeneous shapes characteristic for disordered material which after heating at 1500 degrees C changed shape into an ordered shape characteristic of the crystalline form. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:456 / 458
页数:3
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