Plasmonic enhanced upconversion luminescence of β-NaYF4: Yb3+/Er3+ with Ag@SiO2 core-shell nanoparticles

被引：36

作者：

Ding, Yanli ^{[1
,2
]}

Zhang, Xiaodan ^{[1
]}

Gao, Haibo ^{[1
]}

Xu, Shengzhi ^{[1
]}

Wei, Changchun ^{[1
]}

Zhao, Ying ^{[1
]}

机构：

[1] Nankai Univ, Inst Photoelect Thin Film Devices & Technol, Tianjin 300071, Peoples R China

[2] Shangqiu Normal Univ, Dept Phys & Informat Engn, Shangqiu 476000, Peoples R China

来源：

JOURNAL OF LUMINESCENCE | 2014年 / 147卷

关键词：

Up-conversion; NaYF4:Yb3+/Er3+; Silica shell thickness; Ag@SiO2 NPs; Plasmonic enhancement; FLUORESCENCE;

D O I：

10.1016/j.jlumin.2013.10.062

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Ag@SiO2 nanoparticles (NPs) are proposed and synthesized to enhance beta-NaYE4:Yb3+/Er3+ luminescence by mixing with beta-NaYF4:Yb3+/Er3+ in the solution. Luminescence enhancements are found to be dependent on the amount of addition and the silica shell thickness of the Ag@SiO2 NPs. For the same silica shell thickness of Ag@SiO2 NPs, the optimum mass ratio of Ag@SiO2/microcrystals for the enhancement is 1:21500. For different silica shell thickness of Ag@SiO2 NPs, the maximum luminescence enhancement occurs at the silica shell thickness of 8 nm under the condition of optimal mass, an overall enhancement factor of 3.5 fold is obtained. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：72 / 76

页数：5

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