title: Electrochemical synthesis using a self-assembled Au nanoparticle template of dendritic films with unusual wetting properties.
abstract: This report describes the electrochemical preparation of dendritic silver films with unusual wetting properties coming from the use of a self-assembled gold nanoparticle (Au NP) template. It shows that the Au NP self-assembled monolayer on the highly ordered pyrolytic graphite (HOPG) surface is responsible for the formation of the dendritic morphology, which is not observed for the same deposition conditions on a bare HOPG substrate. An interesting evolution of the wetting properties of these films during the electrodeposition process is observed. Field emission scanning electron microscopy (FEGSEM), energy-dispersive spectrometry (EDS), x-ray photoelectron spectroscopy (XPS) and contact angle measurements are used to reveal the dendritic structure of the deposited silver film at a later stage of the electrodeposition process. They also reveal surprising wetting properties in terms of hydrophobic surface.
authors: UPMC, Laboratoire d'Electrochimie, Chimie des Interfaces et Modélisation pour l'Energie, ENSCP, Chimie ParisTech, CNRS/UMR 7575, Paris, France. abdelhafed.taleb@upmc.fr
authors: Abdelhafed
authors: A
authors: Taleb
authors: Claire
authors: C
authors: Mangeney
authors: Valentina
authors: V
authors: Ivanova