Downconversion in Pr3+-Yb3+ co-doped ZBLA fluoride glasses

被引：22

作者：

Maalej, O. ^{[1
,2
]}

Boulard, B. ^{[1
]}

Dieudonne, B. ^{[1
]}

Ferrari, M. ^{[3
]}

Dammak, M. ^{[2
,4
]}

机构：

[1] Univ Maine, Inst Mol & Mat Mans, CNRS, UMR 6283, F-72085 Le Mans 09, France

[2] Univ Sfax, Fac Sci, Lab Chim Inorgan, Sfax 3000, Tunisia

[3] CNR, Inst Photon & Nanotechnol, CSMFO Lab, I-38123 Trento, Italy

[4] Univ Sfax, Fac Sci, Lab Phys Appl, Grp Mat Luminescents, Sfax 3000, Tunisia

来源：

JOURNAL OF LUMINESCENCE | 2015年 / 161卷

关键词：

Fluoride; Glass; Rare earth; Luminescence; Downconversion; DOWN-CONVERSION; PR;

D O I：

10.1016/j.jlumin.2015.01.018

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Fluorozirconate ZBLA glasses with molar composition 57ZrF(4)-34BaF(2)-5LaF(3)-4AlF(3)-0.5PrF(3)-xYbF(3) (from x=0 to 10) were synthesized to evaluate the rate of the conversion of visible photons into infrared photons. The emission spectra in the near infrared (NIR) at 950-1100 nm and the luminescence decays in the visible and NIR indicate an energy transfer from Pr3+ to Yb3+ upon blue excitation of Pr3+ at 440 nm. The energy transfer efficiency increases with Y3+ concentration to reach 86% with 0.5Pr(3+)-10Yb(3+) co-doping (in mol%). However, the quenching of the Yb3+ emission strongly reduces the efficiency of the downconversion process: the decay time values decrease from 600 mu s (x=0.5 mol%) to 85 mu s (x=10 mol%). (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：198 / 201

页数：4

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