Article (Scientific journals)
Formation on copper of perfluoroetheralkyl-thiol and dithiol self-assembled monolayers with a perfluoropolyether overlayer
Denayer, Jessica; Volcke, C.; Delhalle, J. et al.
2012In Electrochimica Acta, 63, p. 269-276
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Keywords :
Copper; Perfluorinated alkanethiol; PFPE lubricant; Self-assembled monolayers; Bi-layer; Bilayer systems; Copper-based; Dithiols; Electrical contacts; Low costs; Metal oxidation; Mobile layers; Perfluoropolyethers; PFPE lubricants; Sams; Thin lubricant films; Copper corrosion; Electric conductivity; Self assembled monolayers
Abstract :
[en] Copper based electrical contacts are widely used thanks to the high electric conductivity and low cost of this metal. However, the efficiency and durability of the devices can be affected by several factors including metal oxidation and corrosion. In this paper, a bilayer mixed lubricant has been developed to attenuate those hindrances. It is composed of an immobile layer (perfluoroetheralkyl-thiol and dithiol SAMs) to reduce copper corrosion, and by a mobile layer (PFPE lubricant) to reduce the friction. The perfluorinated SAMs have been successfully achieved on copper and the resulting monolayers exhibit high blocking and insulating behaviors. The spreading of PFPE lubricant on those self-assemblies has then been performed. The resulting bilayer systems are homogeneous and completely wetted by the lubricant. Furthermore, the bilayer systems show higher retention of the thin lubricant film than the bare copper. © 2011 Elsevier Ltd. All rights reserved.
Disciplines :
Chemistry
Author, co-author :
Denayer, Jessica ;  Université de Liège - ULiège > Département de chimie (sciences) > LCIS - GreenMAT
Volcke, C.;  Research Centre in Physics of Matter and Radiation (PMR), Facultés Universitaires Notre-Dame de la Paix, Rue de Bruxelles 61, 5000 Namur, Belgium
Delhalle, J.;  Laboratory of Chemistry and Electrochemistry of Surfaces, Facultés Universitaires Notre-Dame de la Paix, Rue de Bruxelles 61, 5000 Namur, Belgium
Mekhalif, Z.;  Laboratory of Chemistry and Electrochemistry of Surfaces, Facultés Universitaires Notre-Dame de la Paix, Rue de Bruxelles 61, 5000 Namur, Belgium
Language :
English
Title :
Formation on copper of perfluoroetheralkyl-thiol and dithiol self-assembled monolayers with a perfluoropolyether overlayer
Publication date :
2012
Journal title :
Electrochimica Acta
ISSN :
0013-4686
Publisher :
Pergamon Press - An Imprint of Elsevier Science
Volume :
63
Pages :
269-276
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 14 February 2013

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