IMECH-IR  > 非线性力学国家重点实验室
Electrowetting on curved surfaces
Wang Y(王樱); Zhao YP(赵亚溥);
Source PublicationSoft Matter

In this work, we explore the influence of the surface curvature on the contact angle in electrowetting (EW). By using the method of energy minimization, an extended EW equation for EW on curved surfaces is obtained. A curvature-modified EW number is introduced to describe the surface curvature effect. It is found that the variation of the contact angle will be curvature dependent; especially, with decreasing of the system size, the surface curvature effect would be even more significant. Comparing with the planar situation, the contact angle variation decreases on convex surfaces but increases on concave surfaces. Then considering the line tension effect, an extended expression for EW on curved surfaces is proposed. Since curved surfaces are more common, both natural and synthetic, our findings will have important implications for the miniaturization of future electronic products.

KeywordCarbon Nanotubes Contact-angle Water Actuation Voltage Paper Displays Droplets Charge Lens
Subject Area微机电系统中的固体力学问
Indexed BySCI ; EI
WOS IDWOS:000300048300005
Citation statistics
Cited Times:28[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Recommended Citation
GB/T 7714
Wang Y,Zhao YP, Electrowetting on curved surfaces[J]. Soft Matter,2012,8(9):2599-2606.
APA Wang Y,Zhao YP,& on curved surfaces.Soft Matter,8(9),2599-2606.
MLA Wang Y,et al."Electrowetting on curved surfaces".Soft Matter 8.9(2012):2599-2606.
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