Gold-sulfur bonding in 2D and 3D self-assembled monolayers: XPS characterization
Article Abstract:
The actual nature of the Au-S bonding remains poorly characterized inspite of intensely studying self-assembled monolayers (SAMs) of alkylthiols on planar gold (2D SAMs) and on gold nanoparticles (3D SAMs). The close relationship between bonding in the 2D and 3D SAMs confirms that the high surface area 3D SAM system can be used to probe properties of SAMs by both bulk and surface spectroscopic techniques
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2000
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Nanomechanical cantilever motion generated by a surface-confined redox reaction
Article Abstract:
Interfacial stress changes at electroactive self-assembled monolayers are investigated, and the origin of the redox induced stress change that occurs at the close-packed monomolecular films is discussed. Surface stress measurements using atomic force microscopy (AFM) cantilevers may provide new insights into the physical and chemical processes that accompany redox reactions at modified electrodes.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2003
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Potential-induced defects in n-alkanethiol self-assembled monolayers monitored by impedance spectroscopy
Article Abstract:
The ionic permeability of alkanethiol self-assembled monolayers (SAMs) chemisorbed on gold is studied using ac impedance spectroscopy in the absence of redox active species. Detailed ac impedance spectroscopy measurements reveal unique electrochemical properties of n-alkanethiols SAMs formed on polycrystalline gold surfaces.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2000
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- Abstracts: Microstructure, wettability, and thermal stability of semifluorinated self-assembled monolayers (SAMs) on gold
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