Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/7564
Title: Ordering of air-oxidized decanethiols on Au(111)
Authors: Sotthewes, Kai
Kap, Özlem
Wu, Hairong
Thompson, Damien
Huskens, Jurriaan
Zandvliet, Harold J. W.
Keywords: Self assembled monolayers
Au(111)
Density Functional Theory
Alkanethiols
Surface coverages
Issue Date: Apr-2018
Publisher: American Chemical Society
Source: Sotthewes, K., Kap, Ö., Wu, H. Thompson, D., Huskens, J., and Zandvliet, H. J. W. (2018). Ordering of air-oxidized decanethiols on Au(111). Journal of Physical Chemistry C, 122(15), 8430-8436. doi:10.1021/acs.jpcc.8b01389
Abstract: Self-assembled monolayers (SAMs) of alkanethiols on gold are a commonly used platform for nanotechnology owing to their ease of preparation and high surface coverage. Unfortunately, the gold-sulfur bond is oxidized at ambient conditions which alters the stability and structure of the monolayer. We show using scanning tunneling microscopy and X-ray photoelectron spectroscopy that decanethiolate molecules oxidize into decanesulfonates that organize into a hitherto unknown striped phase. Air-exposed SAMs oxidize, as can be determined by a shift of the S 2p peak and the appearance of O 1s photoelectrons as part of the decanethiol monolayer transforms into a lamellae-like decanesulfonate structure when exposed to air. The herringbone structure of the Au(111) surface is preserved, indicating that the interaction between the molecules and the surface is rather weak as these findings are substantiated by density functional theory calculations.
URI: https://doi.org/10.1021/acs.jpcc.8b01389
https://hdl.handle.net/11147/7564
ISSN: 1932-7447
1932-7447
1932-7455
Appears in Collections:Materials Science and Engineering / Malzeme Bilimi ve Mühendisliği
PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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