Surface-enhanced Raman scattering of silylated graphite oxide sheets sandwiched between colloidal silver nanoparticles and silver piece

被引：14

作者：

Fu, Xiaoqi ^{[1
]}

Bei, Fengli ^{[1
]}

Wang, Xin ^{[1
]}

Yang, Xujie ^{[1
]}

Lu, Lude ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Key Lab Soft Chem & Funct Mat, Minist Educ, Nanjing 210094, Peoples R China

来源：

JOURNAL OF RAMAN SPECTROSCOPY | 2010年 / 41卷 / 04期

基金：

中国国家自然科学基金;

关键词：

graphite oxide; silylation; surface-enhanced Raman scattering; sandwich; CARBON NANOTUBES; SPECTROSCOPY; SPECTRA; SERS;

D O I：

10.1002/jrs.2481

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Graphite oxide (GO) was successfully silylated by 3-mercaptopropyltrimethoxysilane. The surface-enhanced Raman scattering spectrum of the silylated GO sheets sandwiched between colloidal silver nanoparticles and silver piece is presented. The Raman signal shows a 10(4) enhancement compared to that of bulk GO. The large Raman enhancement is most likely a result of electromagnetic (EM) coupling between the colloidal silver nanoparticles (localized surface plasmon) and the silver piece (surface plasmon polariton), creating large localized EM fields at their interface, where the silylated GO sheets reside in this sandwich architecture. Copyright (C) 2009 John Wiley & Sons, Ltd.

引用

页码：370 / 373

页数：4

共 26 条

[1] Graphite oxide:: Chemical reduction to graphite and surface modification with primary aliphatic amines and amino acids [J].