Construction of Core-Shell Ag@SiO2 Nanoarrays on Polystyrene Microspheres with Metal-Enhanced Fluorescence Effect

被引:3
|
作者
Shen, Xin [1 ]
Shen, Qianhong [1 ,2 ]
Yu, Yang [1 ]
Zhang, Fang [2 ]
Cheng, Di [2 ]
Yang, Hui [1 ,2 ]
机构
[1] Zhejiang Univ, Sch Mat Sci & Engn, State Key Lab Silicon Mat, Hangzhou, Zhejiang, Peoples R China
[2] Zhejiang Univ, Zhejiang Calif Int NanoSyst Inst, Hangzhou, Zhejiang, Peoples R China
来源
CHEMNANOMAT | 2018年 / 4卷 / 02期
关键词
fluorescence; nanoarrays; nanoparticles; silver composite materials; nanostructures; SINGLE-MOLECULE FLUORESCENCE; DEPENDENT FLUORESCENCE; PLASMONIC ENHANCEMENT; SILVER NANOPARTICLES; GOLD NANORODS; NANOCOMPOSITES; NANOANTENNAS; DNA; NANOCLUSTERS; DISTANCE;
D O I
10.1002/cnma.201700317
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A micro-nano structure with metal-enhanced fluorescence (MEF) effect was constructed through a controllable assembly of the core-shell Ag@SiO2 nanoparticles on polystyrene microspheres. Such a unique structure makes it possible to regulate the plasmon coupling of Ag nanoparticles by simply tailoring the size of the Ag core and the thickness of the SiO2 shell. The experimental and theoretical simulations demonstrate the effectiveness of this micro-nano structure in an MEF field, and thus provide an approach to fabricate Ag nanocomposite materials with high fluorescence enhancement factors.
引用
收藏
页码:170 / 174
页数:5
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