Local Surface Modifications Investigated by Combining Scanning Electrochemical Microscopy and Surface-Enhanced Raman Scattering

被引：22
作者：
Clausmeyer, Jan [1 ]
Nebel, Michaela [2 ]
Gruetzke, Stefanie [1 ]
Kayran, Yasin U. [1 ]
Schuhmann, Wolfgang [1 ]
机构：
[1] Ruhr Univ Bochum, CES, Analyt Chem, Univ Str 150, D-44780 Bochum, Germany
[2] Sensolytics GmbH, Univ Str 142, D-44799 Bochum, Germany
来源：
CHEMPLUSCHEM | 2018年 / 83卷 / 05期
关键词：
scanning electrochemical microscopy; surface-enhanced Raman scattering; self-assembled monolayer; spectroelectrochemistry; surface patterning; SELF-ASSEMBLED MONOLAYERS; P-AMINOTHIOPHENOL; IMPEDANCE SPECTROSCOPY; SILVER NANOPARTICLES; DNA HYBRIDIZATION; DIRECT MODE; GOLD; SERS; NITROTHIOPHENOL; SECM;
D O I：
10.1002/cplu.201800031
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Scanning electrochemical microscopy (SECM) is coupled with surface-enhanced Raman scattering (SERS) microscopy to characterize local surface modifications. SECM is utilized for the surface patterning of para-nitrothiophenol self-assembled monolayers (SAMs) in the direct mode of SECM with a subsequent readout of the chemical patterns by means of combined SECM-SERS. The SECM-SERS combination allows monitoring of local electrochemical processes and provides simultaneous complementary spectroscopic information. The reaction products upon SAM reduction, specifically p-aminothiophenol groups, are distinguished from the pristine SAM and locally ruptured areas.
引用
收藏
页码：414 / 417
页数：4
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