Two-dimensional surface enhanced Raman mapping of differently prepared gold substrates with an azobenzene self-assembled monolayer

被引：40
|
作者：
Zhu, T [1 ]
Yu, HZ [1 ]
Wang, J [1 ]
Wang, YQ [1 ]
Cai, SM [1 ]
Liu, ZF [1 ]
机构：
[1] BEIJING UNIV,CTR INTELLIGENT MAT RES,COLL CHEM & MOL ENGN,BEIJING 100871,PEOPLES R CHINA
来源：
CHEMICAL PHYSICS LETTERS | 1997年 / 265卷 / 3-5期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1016/S0009-2614(96)01446-7
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
An azobenzene self-assembled monolayer (SAM) was used to obtain the two-dimensional surface-enhanced Raman scattering (SERS) maps of gold substrates, which were prepared by electrochemical roughening and colloidal Au nanoparticle assembling, respectively. The Raman maps thus obtained showed that the lateral distribution of SERS intensity varies to a significant extent over the substrate surfaces. Especially, the nanoparticle substrate has a more homogeneous distribution of SERS enhancement factors than that of the electrochemically roughened one, which are believed to reflect the different morphology of these two substrates.
引用
收藏
页码：334 / 340
页数：7
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