Self-organization of α-cyclodextrin on Au(111) surfaces induced by potential controlled adsorption

Akihiro Ohira, Takahiro Ishizaki, Masayo Sakata, Masashi Kunitake, Isao Taniguchi, Chuichi Hirayama

研究成果: Article査読

14 被引用数 (Scopus)

抄録

Potential-induced self-organization of α-cyclodextrin (CyD) on Au(111) surfaces in sodium perchlorate has been investigated by using in-situ scanning tunneling microscopy (STM). Near the open circuit potential (approximately +0.0 V vs. SCE), the CyD molecule adsorbs randomly on bare Au(111) surfaces and the desorption of CyD from Au surfaces is observed at negative potentials less than -0.40 V. On the other hand, it was found that the CyD molecules formed an ordered array with a cylindrical structure on the Au(111) surface in the potential region from -0.20 to -0.15 V. The cylindrical structure in which the cavities of CyD face sideways proved that the structure of the adlayer is formed not by simple epitaxy but by self-organization of the molecules.

本文言語English
ページ(範囲)163-167
ページ数5
ジャーナルJournal of Electroanalytical Chemistry
472
2
DOI
出版ステータスPublished - 1999 8 30
外部発表はい

ASJC Scopus subject areas

  • 分析化学
  • 化学工学(全般)
  • 電気化学

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