Luminescence and excitation energy transfer in new fluoride crystals containing rare earth ions

被引：5

作者：

Ryba-Romanowski, W. ^{[1
]}

Solarz, P. ^{[1
]}

Gusowski, M. ^{[1
]}

Dominiak-Dzik, G. ^{[1
]}

机构：

[1] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50422 Wroclaw, Poland

来源：

RADIATION MEASUREMENTS | 2007年 / 42卷 / 4-5期

关键词：

fluoride crystals; luminescence; energy transfer; vacuum ultraviolet;

D O I：

10.1016/j.radmeas.2007.02.018

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Spectroscopic characteristics of Pr3+ and Eu3+ in K2Na2GdF7, K5Li2GdF10 and K3GdF6 fluoride matrices are considered. Crystal structures of these compounds have been ascertained based on X-ray measurement on single crystal samples. Energies of lattice vibrations have been derived from IR and Raman spectra. Spectroscopic features of crystals in the VUV region were studied using experimental facilities of the Superlumi station at HASYLAB in Hamburg. High-resolution spectra and decay curves of luminescence in the visible were used to determine the energy levels and excited state relaxation dynamics of luminescent ions. Relevance of energy transfer processes, which feed the D-5(J) levels of Eu3+ and the (3)p(0) level of Pr3+, is discussed. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：798 / 802

页数：5

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