Polarity-dependent electro-wetting or -dewetting on a conductive silicon substrate

Lele Zhou; Rong Zhang; Hung-Ta Wang; Yifan Liu

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arXiv · 2207.11109

Polarity-dependent electro-wetting or -dewetting on a conductive silicon substrate

Lele Zhou·Rong Zhang·Hung-Ta Wang·Yifan Liu

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Abstract

We demonstrate droplet manipulation using electric signals to induce the liquid to wet or dewet on a hydrophilic conductive substrate in the air without adding layers. In this phenomenon, the contact angle changes more than 15{\deg} or -20{\deg} by using the ionic surfactant mediated droplets, with only \pm3 volts of the actuation voltage.

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Lele Zhou, Rong Zhang, Hung-Ta Wang, Yifan Liu. 2022-07-22. Polarity-dependent electro-wetting or -dewetting on a conductive silicon substrate. https://arxiv.org/abs/2207.11109

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