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| Journal Article | PreJuSER-4328 |
; ; ;
2009
Elsevier
Amsterdam
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Please use a persistent id in citations: doi:10.1016/j.susc.2009.03.002
Abstract: Systematic studies of domain boundaries of self-assembled monolayers of octanethiols on (111) oriented gold surfaces have been performed by ultrahigh vacuum scanning tunnelling microscopy (STM). The monolayers consist of domains that exhibit the c(4 x 2) superstructure of the hexagonal (root 3x root 3)R30 degrees structure of alkanethiols on gold. By high-resolution images domain boundaries are displayed with molecular resolution. These are used to deduce the exact relation between the adsorption sites of the molecules belonging to different domains on the gold substrate. A translational transition is shown here in detail and it is demonstrated that hexagonal close-packed (hcp), and face-centred cubic (fcc) triple hollow sites are occupied similarly by octanethiols. (C) 2009 Elsevier B.V. All rights reserved.
Keyword(s): J ; Scanning tunnelling microscopy (auto) ; Molecular electronics (auto) ; Self-assembly (auto) ; Alkanethiols (auto) ; Molecular structure (auto) ; Domain boundaries (auto)
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