Pulse potential deposition of thick polyvinylpyridine-like film on the surface of titanium nitride

Abstract : Electrografting based on the reduction of diazonium salts has been conventionally performed at the laboratory scale with cyclic voltammetry using a typical three-electrode electrochemical system. However, this promising coating technique still needs simplification for industrial feasibility. In this work, we report that pulse potential deposition, using an only two-electrode system, is a powerful tool for the grafting through diazonium chemistry. Importantly, this method allows the covalent attachment of a 135 nm thick polyvinylpyridine-like polymeric film on a titanium nitride wafer of industrial dimensions (200 mm diameter) using an acidic solution of 4-nitrobenzenediazonium and vinylpyridine monomer. Success in grafting suitable polymer films with well-controlled thickness on real engineering materials, such as titanium nitride, opens the door for many novel applications in micro-electromechanical systems (MEMS).
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https://hal-cea.archives-ouvertes.fr/cea-01356768
Contributor : Serge Palacin <>
Submitted on : Friday, August 26, 2016 - 2:03:19 PM
Last modification on : Thursday, February 7, 2019 - 5:17:32 PM

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Gul Zeb, Phuong Nguyen Tri, Serge Palacin, Xuan Tuan Le. Pulse potential deposition of thick polyvinylpyridine-like film on the surface of titanium nitride. RSC Advances, Royal Society of Chemistry, 2016, 6, pp.80825-80829. ⟨http://pubs.rsc.org/en/Content/ArticleLanding/2016/RA/C6RA14487J#!divAbstract⟩. ⟨10.1039/c6ra14487j⟩. ⟨cea-01356768⟩

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