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Owens TM, Ludwig BJ, Schneider KS, et al. Oxidation of alkylsilane-based monolayers on gold. Langmuir. 2004;20(22):9636-45doi: 10.1021/la0496385.
Owens, T. M., Ludwig, B. J., Schneider, K. S., Fosnacht, D. R., Orr, B. G., & Holl, M. M. (2004). Oxidation of alkylsilane-based monolayers on gold. Langmuir : the ACS journal of surfaces and colloids, 20(22), 9636-45. https://doi.org/10.1021/la0496385
Owens, Thomas M, et al. "Oxidation of alkylsilane-based monolayers on gold." Langmuir : the ACS journal of surfaces and colloids vol. 20,22 (2004): 9636-45. doi: https://doi.org/10.1021/la0496385
Owens TM, Ludwig BJ, Schneider KS, Fosnacht DR, Orr BG, Holl MM. Oxidation of alkylsilane-based monolayers on gold. Langmuir. 2004 Oct 26;20(22):9636-45. doi: 10.1021/la0496385. PMID: 15491197.
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Langmuir. 2004 Oct 26;20(22):9636-45. doi: 10.1021/la0496385.

Oxidation of alkylsilane-based monolayers on gold.

Langmuir : the ACS journal of surfaces and colloids

Thomas M Owens, Bonnie J Ludwig, Kevin S Schneider, Daniel R Fosnacht, Bradford G Orr, Mark M Banaszak Holl

Affiliations

  1. Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, USA.

PMID: 15491197 DOI: 10.1021/la0496385

Abstract

The oxidation of alkylsilane monolayers on Au has been studied by X-ray photoelectron spectroscopy, reflection-absorption infrared spectroscopy, contact-angle measurements, and scanning tunneling microscopy. Exposure of the monolayers at 298 K to pure O(2) or H(2)O (>5 x 10(-5) Torr and >150 000 L) does not cause oxidation. Ambient atmosphere only causes oxidation if direct sight lines are maintained to the sample. Ozone exposure results in rapid monolayer oxidation. Oxidation initially occurs only at the Si atom, resulting in formation of a cross-linked siloxane monolayer that retains alkyl surface termination. Prolonged ozone exposures result in the oxidation and subsequent loss of the alkyl chain.

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