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Développements de la microscopie électrochimique pour la microfabrication. Application à l'élaboration de surfaces à contraste de mouillage sur des supports fluorés.

Abstract : The aim of this thesis is to make hydrophilic patterns using a hydrophobic substrate and electrochemical microscopy (SECM) in order to subsequently include them in Microsystems. We looked at the theoretical aspect of surface microetching with SECM. Using digital stimulation, we observed the movement's influence of a disk microelectrode scanning the surface on the current response and we adapted SECM to a microelectrode band both theoretically and experimentally. We then used these results to make high-energy patterns in the shape of bands on low energy fluorinated surfaces (PTFE and silanised glass). We measured the variation of the surface energy as a result of the presence of these patterns, using the contact angles and the local distortion of the triple line of a liquid. With the aim of creating a thin liquid strip on a pattern, we finally observed the condensation of a liquid on such locally modified surfaces.
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https://pastel.archives-ouvertes.fr/pastel-00002195
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Submitted on : Monday, April 23, 2007 - 8:00:00 AM
Last modification on : Saturday, September 26, 2020 - 11:44:03 PM
Long-term archiving on: : Thursday, September 30, 2010 - 8:05:23 PM

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  • HAL Id : pastel-00002195, version 1

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Adrien Fuchs. Développements de la microscopie électrochimique pour la microfabrication. Application à l'élaboration de surfaces à contraste de mouillage sur des supports fluorés.. Chimie. Université Pierre et Marie Curie - Paris VI, 2006. Français. ⟨pastel-00002195⟩

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