Selective replacement of adsorbed alkanethiols in phase-separated binary self-assembled monolayers by electrochemical partial desorption

Shin Ichiro Imabayashi, Daisuke Hobara, Takashi Kakiuchi, Wolfgang Knoll

研究成果: Article査読

153 被引用数 (Scopus)

抄録

A new method for preparing phase-separated binary self-assembled monolayers (SAMs) of alkanethiols on gold is proposed. Binary SAMs of 3-mercaptopropionic acid (MPA) and hexadecanethiol (HDT) at various mixing ratios which exhibit phase separation in nanometer scale are used as starting substrates. Because the MPA domains in the binary SAMs have a less negative desorption potential, they can be selectively removed by controlling the potential of gold substrates in 0.5 M KOH. Other alkanethiols with various chain lengths and terminal groups can subsequently be adsorbed where MPA was originally adsorbed, resulting in phase-separated binary SAMs with different combinations of alkanethiols.

本文言語English
ページ(範囲)4502-4504
ページ数3
ジャーナルLangmuir
13
17
出版ステータスPublished - 1997 8月 20
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 表面および界面
  • 分光学
  • 電気化学

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