N Nanostructured organic films on gold : electrochemically assisted assembly (CROSBI ID 535026)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Petrović, Željka ; Metikoš-Huković, Mirjana
engleski
N Nanostructured organic films on gold : electrochemically assisted assembly
The organization of organic molecules into thin films through self-assembly provides a facile method of preparing surfaces with a well-defined composition, structure and thickness. These films potentially enable to tailor and to optimize the surface properties for a variety of technological applications as well as for fundamental studies of surface phenomena. In the present work nanostructured films of 1-dodecanethiol onto the polycrystalline gold surface were prepared by the potential assisted self-assembly. Contact angle goniometry, surface-enhanced Raman spectroscopy, cyclic voltammetry, and impedance spectroscopy were used to investigate the monolayer properties in aqueous electrolytes. The closely packed and well ordered monolayers are stable over a wide potential range in aqueous electrolytes. Their dielectric barrier properties were evaluated by performing electrochemical measurements without and in the presence of a redox couple. The obtained results have shown that the monolayer of 1-dodecanethiol is essentially free of pinhole defects, and the electron transfer reaction takes place through tunnelling mechanism at collapsed sites in the monolayer.
gold; nanostructured dodecanethiol films; dielectric properties; electron transfer reaction
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Podaci o prilogu
247-247.
2008.
objavljeno
Podaci o matičnoj publikaciji
1st Regional Symposium on Electrochemistry of South-East Europe : Book of Abstract
Horvat-Radošević, Višnja ; Mandić, Zoran ; Gojo, Miroslav
Zagreb: Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI)
978-953-6894-33-8
Podaci o skupu
Regional Symposium on Electrochemistry of South-East Europe (1 ; 2008)
poster
04.05.2008-08.05.2008
Rovinj, Hrvatska