Atomic oxygen reactions with semifluorinated and n-alkanethiolate self-assembled monolayers
نویسندگان
چکیده
منابع مشابه
Adsorption-induced surface stresses in alkanethiolate-au self-assembled monolayers.
First-principles calculations were employed to elucidate the origin of adsorption-induced surface stresses in alkanethiolate self-assembled monolayers on an Au(111) surface. Our results suggest a mechanism that accounts for the huge relief of the tensile stress compared to the bare surface in terms of a local rearrangement of surface Au atoms accompanying charge removal from the surface towards...
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The microstructure, wettability, and thermal stability of self-assembled monolayers (SAMs) on gold generated from semifluorinated alkanethiols F(CF2)10(CH2)nSH, where n ) 2, 6, 11, 17, and 33 (F10HnSH), were examined by polarization modulation infrared reflection absoprtion spectroscopy (PM-IRRAS) and dynamic contact angle measurements. Analysis by PM-IRRAS revealed that the length of the methy...
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We have conducted a comprehensive study of ground-state O((3)P) atomic oxygen reactions with 1-hexadecanethiolate (CH3(CH2)15SH) and 1-undecanethiolate (CH3(CH2)10SH) self-assembled monolayers adsorbed onto Au/mica substrates, using X-ray photoelectron spectroscopy, infrared reflection absorption spectroscopy, ellipsometry, and contact angle measurements. In general, the reactions are not limit...
متن کاملDipole Formation at Interfaces of Alkanethiolate Self-assembled Monolayers and Ag(111)
The formation of interface dipoles in self-assembled monolayers (SAMs) of –CH3 and –CF3 terminated short-chain alkanethiolates on Ag(111) is studied by means of density functional theory calculations. The interface dipoles are characterized by monitoring the change in the surface work function upon adsorption of the SAM. We compare results obtained for SAMs in structures with a different packin...
متن کاملMolecular Packing of Semifluorinated Alkanethiol Self-Assembled Monolayers on Gold: Influence of Alkyl Spacer Length
The structures of semifluorinated alkanethiol self-assembled monolayers (SAMs) generated by the adsorption of CF3(CF2)9(CH2)nSH (F10HnSH, n ) 2, 6, 11, 17, 33) onto gold were investigated with atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), and surface plasmon resonance spectroscopy. Images obtained by AFM of the F10H2SH SAM showed a remarkably ordered 2D hexagonal lattic...
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ژورنال
عنوان ژورنال: The Journal of Chemical Physics
سال: 2004
ISSN: 0021-9606,1089-7690
DOI: 10.1063/1.1640336