15:45 〜 16:15
[3Ep07(2023女子大学院生優秀賞)] Development of new techniques for single-molecule measurements at electrochemical interfaces: redox reaction tracking and electrodeposited gold probes
The electrochemical interface is the fields of energy conversion reactions, molecular device operation, and sensing. Electrochemical scanning tunneling microscopy (EC-STM) is a strong method that enables direct observation of electrochemical interfaces with nanoscale spatial resolution by measuring tunneling current with a metal tip. In this study, we developed new sample and tip preparation methods for single-molecule measurement using EC-STM. Redox reactions of ferrocene single molecules were visualized by establishing a sample preparation method suitable for single-molecule measurement using tripodal molecules. Then, we established a new tip fabrication technique to solve a long-standing difficulty in EC-STM, by electrochemically depositing Au on microelectrodes covered with glass.
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