Energy migration and transfer of Tm3+-Gd3+-Dy3+ system in NaGdF4 under VUV and UV excitations

被引：6

作者：

Liu, Chunxu ^{[1
]}

Liu, Junye ^{[1
]}

Lu, Shaozhe ^{[1
]}

Chen, Baojiu ^{[1
]}

Zhang, Jiahua ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Fine Opt Mech & Phys, Key Labv Excited State Proc, Changchun 130033, Peoples R China

来源：

JOURNAL OF LUMINESCENCE | 2007年 / 122卷

基金：

中国国家自然科学基金;

关键词：

NaGdF4 : Tm3+; Dy3+; energy migration and transfer; cross-relaxation; quantum efficiency;

D O I：

10.1016/j.jlumin.2006.01.341

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Based on the basis of the quantum cutting principle, the possibility to obtain two blue photons under excitation of one VUV photon in NaGdF4:Tm3+, Dy3+ has been studied using spectroscopic technique. The Gd3+ -> Dy3+ transfer preceded by energy migration among the Gd3+ ions is mainly governed by the exchange interaction. The quantum efficiencies for the Gd3+ -> Dy3+ energy transfer have an optimal value for acceptor concentration at about N-A = 0.6 at% and concentration quenching can be observed obviously. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：970 / 972

页数：3

共 6 条

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