title: Numerical study of the faithful replication of micro/nanostructures on curved surfaces by the electrohydrodynamic instability process.
abstract: This paper reports the numerical study of the one-step faithful replication of micro/nano-scale structures on a fiber surface by using the electrohydrodynamic instability patterning (EHDIP) process. By employing a rigorous numerical analysis method, conditions are revealed under which the faithful replication of a pattern can be achieved from a curved master electrode. It is found that the radius of curvature of the fiber plays an important role in determining the final morphology of the pattern when the destabilizing electric field is dominant in both the flat and patterned template cases. In general, stronger electric fields and larger radii of curvature of the substrate are favorable for the faithful replication of the pattern. In addition, theoretical analysis shows that higher aspect ratio of micro/nanostructures can be obtained on curved surfaces by using a master with a much lower aspect ratio. The results demonstrated in this study aims to provide guidelines for the faithful fabrication of micro/nanostructures on curved surfaces by the EHDIP process.
authors.affiliation: School of Physical Science and Information Technology, Liaocheng University, Liaocheng, P. R. China.
authors.forename: Hefu
authors.initials: H
authors.lastname: Li
authors.affiliation: Key Laboratory of Spectral Imaging Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xian, P. R. China.
authors.forename: Weixing
authors.initials: W
authors.lastname: Yu
authors.affiliation: State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics & Physics, Chinese Academy of Sciences, Changchun, P. R. China.
authors.forename: Taisheng
authors.initials: T
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics & Physics, Chinese Academy of Sciences, Changchun, P. R. China.
authors.forename: Zhenyu
authors.initials: Z
authors.lastname: Liu
authors.affiliation: MIcroSystems Engineering Centre (MISEC), Institute of Signals, Sensors and Systems, School of Engineering & Physical Sciences, Heriot-Watt University, Edinburgh, UK.
authors.forename: M P Y
authors.initials: MP
authors.lastname: Desmulliez
mesh_terms: D003198:Computer Simulation; D004566:Electrodes; D020342:Finite Element Analysis; D057446:Hydrodynamics; D008962:Models, Theoretical; D049329:Nanostructures / Q000737:chemistry*; D013499:Surface Properties
keywords: Curved surfaces; Electrohydrodynamic instability; Finite element method; Micro; Nanostructures; Two-phase flow