An effective oxide shell-protected surface-enhanced Raman scattering (SERS) substrate: the easy route to Ag@AgxO-silicon nanowire films via surface doping

被引：25

作者：

Liao, Fan ^{[1
]}

Cheng, Liang ^{[1
]}

Li, Jing ^{[1
]}

Shao, Mingwang ^{[1
]}

Wang, Zhenghua ^{[2
]}

Lee, Shuit-Tong ^{[1
]}

机构：

[1] Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, Suzhou 215123, Peoples R China

[2] Anhui Normal Univ, Coll Chem & Mat Sci, Anhui Key Lab Funct Mol Solids, Wuhu, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2013年 / 1卷 / 08期

基金：

中国国家自然科学基金;

关键词：

SILVER NANOPARTICLES; MOLECULES; ARRAYS;

D O I：

10.1039/c2tc00761d

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper reported the fabrication of an ultrathin silver oxide shell covered silver nanoparticles embedded in silicon nanowire film (Ag@AgxO-SiNW) by a facile method. The amorphous ultrathin silver oxide layers, which can keep Ag nanoparticles from agglomerating, were confirmed by HRTEM and STEM mapping. The Ag@AgxO-SiNW was employed as a surface-enhanced Raman scattering substrate and exhibited excellent enhancement for the concentration detection (1 x 10(-7) M) of rhodamine 6 G and crystal violet with the relative standard deviation of the main Raman vibration modes less than 20%. This core@shell structure may be explained by the surface doping of silicon nanowires.

引用

页码：1628 / 1632

页数：5

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