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The Case of the Disappearing Monolayer: Alkylsilane Monolayer Formation, Oxidation, and Subsequent Transparency to Scanning Tunneling Microscopy
Author(s) -
Schneider Kevin S.,
Owens Thomas M.,
Fosnacht Daniel R.,
Orr Bradford G.,
Banaszak Holl Mark M.
Publication year - 2003
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200300851
Subject(s) - monolayer , scanning tunneling microscope , chemistry , microscopy , nanotechnology , self assembled monolayer , materials science , analytical chemistry (journal) , optics , organic chemistry , physics
An invisible monolayer? Oxidation of an octylsilane monolayer (see graphic) chemisorbed onto Au(111) yields two surprising results. The 23× ${ \sqrt{3}}$ Au surface reconstruction typical of a clean gold surface forms underneath the siloxane monolayer. In addition, the physisorbed alkylsiloxane monolayer is transparent to scanning tunneling microscopy imaging.