Luminescence of Tb3+ doped TeO2-ZnO-Na2O-PbO glasses containing silver nanoparticles

被引：43

作者：

Kassab, Luciana R. P. ^{[2
]}

de Almeida, Ricardo ^{[3
]}

da Silva, Davinson M. ^{[3
]}

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

机构：

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

[2] Univ Estadual Paulista, FATEC SP, CEETEPS, Lab Vidros & Datacao, BR-01124060 Sao Paulo, Brazil

[3] Univ Sao Paulo, Escola Politecn, Dept Engn Sistemas Eletron, BR-05508900 Sao Paulo, Brazil

来源：

JOURNAL OF APPLIED PHYSICS | 2008年 / 104卷 / 09期

关键词：

D O I：

10.1063/1.3010867

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Luminescence properties of Tb3+ doped TeO2-ZnO-Na2O-PbO glasses containing silver nanoparticles (NPs) were investigated. The absorption band due to the surface plasmon resonance in the NPs was observed. Its amplitude increases with the heat treatment of the samples that controls the nucleation of the NPs. Tb3+ emission bands centered at approximate to 485, approximate to 550, approximate to 585, and approximate to 623 nm were detected for excitation at 377 nm. The whole spectrum is intensified by the appropriate annealing time of the samples. Enhancement by approximate to 200% of the Tb3+ luminescence at 550 nm was observed for samples annealed at 270 degrees C during 62 h. This enhancement effect is due to the local field amplitude that increases with the amount of silver NPs and their aggregates. (C) 2008 American Institute of Physics. [DOI: 10.1063/1.3010867]

引用

页数：3

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