電気化学環境下における分子エレクトロニクス研究

Translated title of the contribution: Molecular Electronics under Electrochemical Environment

横田 泰之, 宮崎 章, 福井 賢一, 榎 敏明, 玉田 薫, 原 正彦

Research output: Contribution to journalArticle

Abstract

We report the studies of redox-active ferrocene (Fc) and tetrathiafulvalene (TTF) derivative islands embedded in n-decanethiol self-assembled monolayers on Au(111) using electrochemical scanning tunneling microscopy (EC-STM). We performed EC-STM measurements of both islands of varied sizes at various potentials in 0.05 M HClO<Sub>4</Sub> solution. While the apparent height of Fc islands depended on the tip and sample potentials, that of TTF islands did not depend on the potentials except in the case of very small islands (less than ten molecules). Furthermore, the larger the size of TTF islands, the higher the apparent height in the STM images. This is quite contrary to the case of Fc islands where the apparent height did not depend on the island size. We rationalize these behaviors in terms of the differences in intermolecular interaction and effective electron transfer between redox-active moieties.
Translated title of the contributionMolecular Electronics under Electrochemical Environment
Original languageJapanese
Pages (from-to)253-259
Number of pages7
Journal表面科学 : hyomen kagaku = Journal of the Surface Science Society of Japan
Volume29
Issue number4
DOIs
Publication statusPublished - 2008

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