Structure of incommensurate gold sulfide monolayer on Au(111)

Quek, Su Ying ; Biener, Monika M. ; Biener, Juergen ; Bhattacharjee, Joydeep ; Friend, Cynthia M. ; Waghmare, Umesh V. ; Kaxiras, Efthimios (2007) Structure of incommensurate gold sulfide monolayer on Au(111) Journal of Chemical Physics, 127 (10). 104704_1-104704_8. ISSN 0021-9606

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Official URL: http://jcp.aip.org/resource/1/jcpsa6/v127/i10/p104...

Related URL: http://dx.doi.org/10.1063/1.2770731

Abstract

We develop an atomic-scale model for an ordered incommensurate gold sulfide (AuS) adlayer which has previously been demonstrated to exist on the Au(111) surface, following sulfur deposition and annealing to 450 K. Our model reproduces experimental scanning tunneling microscopy images. Using state-of-the-art Wannier-function-based techniques, we analyze the nature of bonding in this structure and provide an interpretation of the unusual stoichiometry of the gold sulfide layer. The proposed structure and its chemistry have implications for related S-Au interfaces, as in those involved in self-assembled monolayers of thiols on Au substrates.

Item Type:Article
Source:Copyright of this article belongs to American Institute of Physics.
Keywords:Annealing; Gold Compounds; Monolayers; Scanning Tunnelling Microscopy; Self-assembly; Stoichiometry; Wannier Functions
ID Code:59390
Deposited On:06 Sep 2011 05:31
Last Modified:18 May 2016 09:58

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