Direct-mode scanning electrochemical microscopy with three electrodes: application to fluorescent micropattern formation

Hiroyuki Sugimura, Tatsuya Uchida, Noboru Kitamura, Nobuo Shimo, Hiroshi Masuhara*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Direct-mode scanning electrochemical microscopy with a three-electrode system, which enables the electrochemical potential of the microscope tip to be defined with respect to a reference electrode, has been demonstrated for the first time and used to study fluorescent micropattern formation in fluorescent dye (methylviologen) + ionic conducting polymer film systems. Fluorescence micropatterns were prepared on the film by scanning a platinum or tungsten tip at a potential more negative than - 0.9 or - 1.2 (vs. Ag/AgCl) respectively. The reaction mechanism of the pattern formation was elucidated on the basis of the tip electrode potential and fluorescence characteristics of the films.

Original languageEnglish
Pages (from-to)57-63
Number of pages7
JournalJournal of Electroanalytical Chemistry
Volume361
Issue number1-2
DOIs
StatePublished - 15 Dec 1993

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