Nano-dot formation using self-assembled 3-mercaptopropionic acid thin films prepared by facile atmospheric-vapor-adsorption method on Au(1 1 1)

Tohru Nakamura, Ryota Kimura, Hideki Sakai, Masahiko Abe, Hiroshi Kondoh, Toshiaki Ohta, Mutsuyoshi Matsumoto

研究成果: Article

5 引用 (Scopus)

抄録

Nanometer scale structures of self-assembled films consisting of 3-mercaptopropionic acid (MPA) were formed by using electric stimuli between scanning tunneling microscope (STM) Au tips and gold surfaces. The obtained structures were compared with those using bare gold surfaces and hexanethiol films on Au(1 1 1) under the same conditions. X-ray photoelectron spectroscopy measurements revealed that self-assembled ultrathin films of the corresponding thiol molecules were fabricated on Au(1 1 1) by a facile atmospheric-vapor-adsorption (AVA) method without solvent. Comparison of nano-structure formation suggested that the self-assembled thin films of 3-mercatopropionic acid molecules gave nano-dots below the height of voltage pulses where gold atom emission from Au tips and surface evaporation of Au(1 1 1) take place. It was found that 3-mercaptopropionic acid films easily produced much better nano-dots on Au(1 1 1) than hexanethiol films probably due to the formation of hydrogen bonding networks and/or the reactions of 3-mercaptopropionic acid when electric pulses were applied to the films.

元の言語English
ページ(範囲)241-251
ページ数11
ジャーナルApplied Surface Science
202
発行部数3-4
DOI
出版物ステータスPublished - 2002 12 30
外部発表Yes

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3-Mercaptopropionic Acid
Vapors
vapors
Adsorption
Thin films
acids
adsorption
Acids
Gold
thin films
gold
electric stimuli
Molecules
Ultrathin films
electric pulses
Sulfhydryl Compounds
Hydrogen bonds
Evaporation
thiols
Microscopes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Condensed Matter Physics

これを引用

Nano-dot formation using self-assembled 3-mercaptopropionic acid thin films prepared by facile atmospheric-vapor-adsorption method on Au(1 1 1). / Nakamura, Tohru; Kimura, Ryota; Sakai, Hideki; Abe, Masahiko; Kondoh, Hiroshi; Ohta, Toshiaki; Matsumoto, Mutsuyoshi.

:: Applied Surface Science, 巻 202, 番号 3-4, 30.12.2002, p. 241-251.

研究成果: Article

Nakamura, Tohru ; Kimura, Ryota ; Sakai, Hideki ; Abe, Masahiko ; Kondoh, Hiroshi ; Ohta, Toshiaki ; Matsumoto, Mutsuyoshi. / Nano-dot formation using self-assembled 3-mercaptopropionic acid thin films prepared by facile atmospheric-vapor-adsorption method on Au(1 1 1). :: Applied Surface Science. 2002 ; 巻 202, 番号 3-4. pp. 241-251.
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