Near-infrared to visible photon up-conversion in V3+, Re4+ co-doped Cs2NaYCl6

被引：5

作者：

Aebischer, A

Wenger, OS

Güdel, HU

机构：

[1] Univ Bern, Dept Chem & Biochem, CH-3000 Bern 9, Switzerland

[2] CALTECH, Dept Chem, Pasadena, CA 91125 USA

来源：

JOURNAL OF LUMINESCENCE | 2003年 / 102卷

关键词：

sensitization; energy transfer; up-conversion; V3(+); Re4+;

D O I：

10.1016/S0022-2313(02)00528-8

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Cs2NaYCl6 co-doped with V3+ and Re4+ was studied by optical absorption and luminescence spectroscopy. In the cubic host lattice both dopant ions substitute for the octahedrally coordinated Y3+. Visible by eye red up-conversion luminescence centered around 14 000 cm(-1) is observed upon near-infrared excitation within the energy range from 10 000 to 12000 cm(-1) between 15 and 300 K. For V3+ T-3(2g) excitation at 113 50 cm(-1), the efficiency of this up-conversion process increases with increasing temperature. An energy transfer step from V3+ to Re4+ followed by an energy transfer up-conversion process on the Re4+ System is shown to be the likely mechanism responsible for this phenomenon. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：48 / 53

页数：6

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