Numerical study of the faithful replication of micro/nanostructures on curved surfaces by the electrohydrodynamic instability process

Hefu Li, Weixing Yu, Taisheng Wang, Zhenyu Liu, Marc Phillipe Yves Desmulliez

Research output: Contribution to journalArticle

1 Citation (Scopus)
73 Downloads (Pure)

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.

Original languageEnglish
Pages (from-to)525-532
Number of pages8
JournalElectrophoresis
Volume38
Issue number3-4
Early online date8 Dec 2016
DOIs
Publication statusPublished - Feb 2017

Keywords

  • Curved surfaces
  • Electrohydrodynamic instability
  • Finite element method
  • Micro
  • Nanostructures
  • Two-phase flow

ASJC Scopus subject areas

  • Biochemistry
  • Clinical Biochemistry

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