Vacuum and Surface Science
Online ISSN : 2433-5843
Print ISSN : 2433-5835
Special Feature : Transactions of the Annual Meeting on the Japan Society of Vacuum and Surface Science 2019[I]
Development of Electrochemical Tip-Enhanced Raman Spectroscopy for Chemical Analysis at the Electrified Interfaces
Yasuyuki YOKOTANorihiko HAYAZAWABo YANGEmiko KAZUMAFrancesca C. I. CATALANYousoo KIM
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2020 Volume 63 Issue 6 Pages 277-282


Microscopic studies on electrolyte solution / electrode interfaces provide the most fundamental information not only for understanding the electric double layer formed at the interfaces but also for designing sophisticated electrochemical (EC) devices. In this study, we developed tip-enhanced Raman spectroscopy (TERS), which is based on an electrochemical scanning tunneling microscope (EC-STM), and demonstrated electrochemical TERS (EC-TERS) measurements of benzenethiol monolayers on Au(111). A specially-designed cell enables us to carry out reproducible EC, EC-STM, and EC-TERS measurements, which indicates consistent results among these techniques for the oxidative desorption of the benzenethiol monolayers.

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