Alkyl chain length effect on growth kinetics of n-alkanethiol self-assembled monolayers on gold studied by x-ray photoelectron spectroscopy

Takao Ishida*, Naoki Nishida, Satoshi Tsuneda, Masahiko Hara, Hiroyuki Sasabe, Wolfgang Knoll

*この研究の対応する著者

研究成果: Article査読

42 被引用数 (Scopus)

抄録

Growth kinetics of self-assembled monolayers (SAMs) of n-alkanethiols on gold substrates was studied by X-ray photoelectron spectroscopy (XPS). We compared adsorption kinetics for three alkanethiol homologues: butanethiol (C4SH), dodecanethiol (C12SH), and octadecanethiol (C18SH). Results of quantitative analysis by XPS suggested that the adsorption rate of short alkyl chain thiols is higher than that of long ones on gold substrates at the initial growth stage, in contrast to previous reports. For C4SH SAM formation, we have also confirmed the occurrence of a replacement effect from contamination to SAM on gold, based on our observation of a decrease in the amount of carbon and an increase in the amount of gold where as determined from XPS spectra.

本文言語English
ページ(範囲)L1710-L1713
ジャーナルJapanese Journal of Applied Physics, Part 2: Letters
35
12 B
DOI
出版ステータスPublished - 1996
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(その他)
  • 物理学および天文学(全般)

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