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STM study of molecule double-rows in mixed self-assembled monolayers of alkanethiols
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Xu, Gengzhao, Woodruff, D. P., Bennett, N. (Neil), Elliott, M. (Martin) and Macdonald, J. Emyr (2010) STM study of molecule double-rows in mixed self-assembled monolayers of alkanethiols. Langmuir, Vol.26 (No.11). pp. 8174-8179. doi:10.1021/la9044754 ISSN 0743-7463.
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Official URL: http://dx.doi.org/10.1021/la9044754
Abstract
Using scanning tunnelling microscopy (STM), we have studied mixed self-assembled monolayers of linear alkanethiol molecules. Nonanedithiol (C9S2), nonanethiol (C9S), decanethiol (C10S), and dodecanethiol (C12S) were inserted into a self-assembled octanethiol (C8S) host matrix monolayer on an Au(111) surface using a two-step method. Quasi-one-dimensional double-row structures were found in the ordered, close-packed domains of the C8S matrix for each mixed monolayer system. These close-packed domains coexist with ordered striped phase domains (for C9S and C10S) or with a disordered phase (for C9S2 and C 12S). Results from high-resolution images suggest that the double-rows are composed of inserted non-nearest-neighbor substitutional molecules, the ordering of which may be a result of locally induced surface stress.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics Q Science > QD Chemistry |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Library of Congress Subject Headings (LCSH): | Surfaces (Physics), Gold, Adsorption, Thiols, Scanning tunneling microscopy | ||||
Journal or Publication Title: | Langmuir | ||||
Publisher: | American Chemical Society | ||||
ISSN: | 0743-7463 | ||||
Official Date: | 1 June 2010 | ||||
Dates: |
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Volume: | Vol.26 | ||||
Number: | No.11 | ||||
Number of Pages: | 6 | ||||
Page Range: | pp. 8174-8179 | ||||
DOI: | 10.1021/la9044754 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Funder: | Engineering and Physical Sciences Research Council (EPSRC) | ||||
Grant number: | EP/D076072/1 (EPSRC) |
Data sourced from Thomson Reuters' Web of Knowledge
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