Ag dendritic nanostructures as ultrastable substrates for surface-enhanced Raman scattering

被引：55

作者：

Chan, Yu Fei ^{[1
,2
]}

Zhang, Chang Xing ^{[1
,2
]}

Wu, Zheng Long ^{[3
]}

Zhao, Dan Mei ^{[1
,2
]}

Wang, Wei ^{[1
,2
]}

Xu, Hai Jun ^{[1
,2
]}

Sun, Xiao Ming ^{[1
,2
]}

机构：

[1] Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China

[2] Beijing Univ Chem Technol, Sch Sci, Beijing 100029, Peoples R China

[3] Beijing Normal Univ, Analyt & Testing Ctr, Beijing 100875, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 18期

基金：

北京市自然科学基金; 国家教育部博士点专项基金资助;

关键词：

SILVER; SERS; SILICON; ARRAYS; NANOPARTICLES; FABRICATION; CHEMISTRY;

D O I：

10.1063/1.4803937

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Dendritic silver nanostructures coated with silica nanofilm are synthesized via hydrothermal etching using silver nitrate, hydrofluoric acid, and hydrogen peroxide and controlling the reagent concentration, reaction time, and temperature. The silver dendritic nanostructures are employed as substrates for surface-enhanced Raman scattering (SERS) and exhibit high sensitivity and excellent stability. Calibration of the Raman peak intensities of rhodamine 6G and thiram allowed quantitative detection of these organic molecules. Our findings are a significant advance in developing robust SERS substrates for fast detection of trace organic contaminants. (C) 2013 AIP Publishing LLC.

引用

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