Infrared-to-visible upconversion emission in Er3+ doped TeO2-WO3-Bi2O3 glasses with silver nanoparticles

被引：25

作者：

de Campos, Vitor P. P. ^{[2
]}

Kassab, Luciana R. P. ^{[3
]}

de Assumpcao, Thiago A. A. ^{[4
]}

da Silva, Diego S. ^{[4
]}

de Araujo, Cid B. ^{[1
]}

机构：

[1] Univ Fed Pernambuco, Dept Fis, BR-50670901 Recife, PE, Brazil

[2] Univ Sao Paulo, Escola Politecn, Dept Engn Met & Mat, BR-05508010 Sao Paulo, Brazil

[3] Fac Tecnol Sao Paulo, BR-01124060 Sao Paulo, Brazil

[4] Univ Sao Paulo, Escola Politecn, Dept Engn Sistemas Eletron, BR-05508010 Sao Paulo, Brazil

来源：

JOURNAL OF APPLIED PHYSICS | 2012年 / 112卷 / 06期

关键词：

TELLURITE GLASS; ENHANCEMENT; FLUORESCENCE; LUMINESCENCE; PARTICLES;

D O I：

10.1063/1.4754468

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The influence of silver nanoparticles (NPs) on the frequency upconversion luminescence in Er3+ doped TeO2-WO3-Bi2O3 glasses is reported. The effect of the NPs on the Er3+ luminescence was controlled by appropriate heat-treatment of the samples. Enhancement up to 700% was obtained for the upconverted emissions at 527, 550, and 660 nm, when a laser at 980 nm is used for excitation. Since the laser frequency is far from the NPs surface plasmon resonance frequency, the luminescence enhancement is attributed to the local field increase in the proximity of the NPs and not to energy transfer from the NPs to the emitters as is usually reported. This is the first time that the effect is investigated for tellurite-tungstate-bismutate glasses and the enhancement observed is the largest reported for a tellurium oxide based glass. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4754468]

引用

页数：4

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