Statics and dynamics of electrowetting on pillar-arrayed surfaces at nanoscale

doi:10.1039/C4NR06759B

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	Statics and dynamics of electrowetting on pillar-arrayed surfaces at nanoscale
	Yuan QZ(袁泉子); Zhao YP(赵亚溥)
发表期刊	Nanoscale
	2015
卷号	7 期号:6 页码:2561-2567
ISSN	2040-3364
摘要	The statics and dynamics of electrowetting on pillar-arrayed surfaces at the nanoscale are studied using molecular dynamics simulations. Under a gradually increased electric field, a droplet is pushed by the electromechanical force to spread, and goes through the Cassie state, the Cassie-to-Wenzel wetting transition and the Wenzel state, which can be characterized by the electrowetting number at the microscale η_m. The expansion of the liquid is direction-dependent and influenced by the surface topology. A positive voltage is induced in the bulk droplet, while a negative one is induced in the liquid confined among the pillars, which makes the liquid hard to spread and further polarize. Based on the molecular kinetic theory and the wetting states, theoretical models have been proposed to comprehend the physical mechanisms in the statics and dynamics of electrowetting, and are validated by our simulations. Our findings may help to understand the electrowetting on microtextured surfaces and assist the future design of engineered surfaces in practical applications.
DOI	10.1039/C4NR06759B
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000349472300048
课题组名称	LNM纳/微系统力学与物理力学
论文分区	一类
引用统计	被引频次：51[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/58329
专题	非线性力学国家重点实验室
推荐引用方式 GB/T 7714	Yuan QZ,Zhao YP. Statics and dynamics of electrowetting on pillar-arrayed surfaces at nanoscale[J]. Nanoscale,2015,7,6,:2561-2567.
APA	Yuan QZ,&Zhao YP.(2015).Statics and dynamics of electrowetting on pillar-arrayed surfaces at nanoscale.Nanoscale,7(6),2561-2567.
MLA	Yuan QZ,et al."Statics and dynamics of electrowetting on pillar-arrayed surfaces at nanoscale".Nanoscale 7.6(2015):2561-2567.

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