Quantum vacuum photon modes and superhydrophobicity

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    Résumé

    Nanostructures are commonly used for developing superhydrophobic surfaces. However, available wetting theoretical models ignore the effect of vacuum photon-mode alteration on van der Waals forces and thus on hydrophobicity. Using first-principles calculations, we show that superhydrophibicity of nanostructured surfaces is dramatically enhanced by vacuum photon-mode tuning. As a case study, wetting contact angles of a water droplet above a polyethylene nanostructured surface are obtained from the interaction potential energy calculated as a function of the droplet-surface separation distance. This new approach could pave the way for the design of novel superhydrophobic coatings.

    langue originaleAnglais
    Numéro d'article024501
    Nombre de pages5
    journalPhysical review letters
    Volume114
    Numéro de publication2
    Les DOIs
    Etat de la publicationPublié - 14 janv. 2015

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