Quantum vacuum photon-modes and superhydrophobicity

TL;DR

This paper demonstrates that tuning vacuum photon-modes can significantly enhance superhydrophobicity of nanostructured surfaces, revealing a new factor influencing wetting behavior often overlooked in existing models.

Contribution

It introduces a first-principles method to account for vacuum photon-modes effects on van der Waals forces, improving predictions of superhydrophobicity.

Findings

Vacuum photon-modes significantly affect wetting properties.

Tuning photon-modes can enhance superhydrophobicity.

New theoretical approach for designing superhydrophobic surfaces.

Abstract

Nanostructures are commonly used for developing superhydrophobic surfaces. However, available wetting theoretical models ignore the effect of vacuum photon-modes alteration on van der Waals forces and thus on hydrophobicity. Using first-principle calculations, we show that superhydrophibicity of nanostructured surfaces is dramatically enhanced by vacuum photon-modes 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 function of the droplet-surface separation distance. This new approach could pave the way for the design of novel superhydrophobic coatings.