Electrowetting-induced dewetting transitions on superhydrophobic surfaces.
Electrowetting-induced dewetting transitions on superhydrophobic surfaces.
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DOI：
10.1021/la2027412
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发表时间：
2011-07
期刊：
影响因子：
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通讯作者：
N. Kumari;S. Garimella
中科院分区：
文献类型：
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作者：
N. Kumari;S. Garimella
我们开发并演示了使用电润湿来实现超疏水表面的脱湿（wenzel - cassie转变）。我们通过一个相对的平板和一个三电极系统来实现这种转变；在施加合适的电压时，液滴完全脱离其湿润的温泽尔状态。我们还通过实验量化了阻止脱湿转变的耗散力。与这些非保守力相关的能量与界面能相当。
We develop and demonstrate the use of electrowetting to achieve the dewetting (Wenzel-to-Cassie transition) of superhydrophobic surfaces. We effect this transition by means of an opposing flat plate and a three-electrode system; the liquid droplet is completely pulled out of its wetted Wenzel state upon the application of a suitable voltage. We also experimentally quantify the dissipative forces preventing the dewetting transition. The energy associated with these nonconservative forces is comparable to the interfacial energies.