A facile method of removing several common surface-enhanced Raman scattering probe molecules adsorbed on Ag with sodium borohydride solution

被引：10

作者：

Yang, Yongan ^{[1
,2
]}

Wang, Yuyang ^{[1
]}

Zhang, Xiaoyong ^{[3
]}

Qi, Guohua ^{[1
]}

Xu, Shuping ^{[1
]}

Xu, Weiqing ^{[1
]}

机构：

[1] Jilin Univ, Inst Theoret Chem, State Key Lab Supramol Struct & Mat, Changchun 130023, Peoples R China

[2] Chu Xiong Normal Univ, Dept Phys & Elect Sci, Chuxiong 675000, Peoples R China

[3] Jilin Univ, Inst Theoret Chem, Changchun, Peoples R China

来源：

JOURNAL OF OPTICS | 2015年 / 17卷 / 07期

基金：

中国国家自然科学基金;

关键词：

SERS; surface-enhanced Raman scattering; probe molecules; silver; surface plasmons; SELF-ASSEMBLED MONOLAYERS; SILVER; ADSORPTION; DESORPTION; SPECTRA;

D O I：

10.1088/2040-8978/17/7/075003

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Ag nanoparticles and nanostructured surfaces have been widely used as surface-enhanced Raman scattering (SERS) substrates, which can enhance the Raman signals when molecules are adsorbed on the surface of Ag by the effect of Ag-thiol bonds. In this paper, we propose an efficient method to remove the molecules adsorbed on Ag with sodium borohydride solution, providing a protocol to realize a reproducible and practicable Ag SERS substrate. A theoretical density function theory approach has been used to explain the mechanism of desorption.

引用

页数：8

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