Luminescence properties of Eu3+-doped Al2( WO4)3

被引：0

作者：

Macalik, L ^{[1
]}

Hanuza, J

Hermanowicz, K

Godlewska, P

Sidorov, NV

机构：

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

[2] Univ Econ, Fac Engn & Econ, Dept Bioorgan Chem, Wroclaw, Poland

[3] Russian Acad Sci, Kola Sci Ctr, Inst Chem, Apatity, Murmansk Region, Russia

来源：

MATERIALS SCIENCE-POLAND | 2004年 / 22卷 / 02期

关键词：

aluminium tungstate; luminescence; excitation; optical properties;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Emission spectra of Al-2(WO4)(3) doped with Eu3+ were recorded at room temperature (orthorhombic phase) and at 10 K ( monoclinic phase). The luminescence excitation spectra and luminescence decay profiles were recorded for both structural modifications at RT and LN2T, and the luminescence lifetimes of Eu3+ have been estimated. Two-site behaviour of the optically active ions in both phases has been revealed in the luminescence studies. However, the emission decay profiles give one lifetime of the D-5(2) level, equal to 1.8 ms and 848.4 mus at room temperature and liquid nitrogen temperature, respectively. The results obtained have been explained in terms of an unusual location of Eu3+ ions inside the crystal tunnels, parallel to the c-axis.

引用

页码：145 / 152

页数：8

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