Comparative studies on structural and luminescent properties of Eu3+:MgAl2O4 and Eu3+/Na+:MgAl2O4 nanopowders and nanoceramics

被引：27

作者：

Wiglusz, R. J. ^{[1
]}

Grzyb, T. ^{[2
]}

Lukowiak, A. ^{[1
]}

Gluchowski, P. ^{[1
]}

Lis, S. ^{[2
]}

Strek, W. ^{[1
]}

机构：

[1] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland

[2] Adam Mickiewicz Univ, Fac Chem, Dept Rare Earth, PL-60780 Poznan, Poland

来源：

OPTICAL MATERIALS | 2012年 / 35卷 / 02期

关键词：

Spinels; Transparent ceramic; Hot pressing; Nanoceramic; Eu3+ doping; Na+ co-doping; JUDD-OFELT PARAMETERS; OPTICAL-PROPERTIES; SPINEL; LASER; SIZE; GLASS; EU3+; SPECTROSCOPY; EMISSION;

D O I：

10.1016/j.optmat.2012.07.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Transparent Eu3+ doped MgAl2O4 and Eu3+/Na+ co-doped MgAl2O4 nanoceramics have been obtained by a low-temperature high-pressure (LTHP) sintering process using crystalline powders prepared by sol-gel method. Structural properties have been studied by X-ray diffraction (XRD) and analyzed by Rietveld method. Luminescent properties of nanoceramics were investigated by excitation and emission spectroscopy at room and liquid nitrogen temperatures and by measuring luminescence decays. Comparison between nanopowders and nanoceramics has shown modification of their structural and spectroscopic characteristics. Differences of luminescence properties were studied and analyzed with Judd-Ofelt theory and also the effect of Na+ co-doping have been discussed. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：130 / 135

页数：6

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