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Numerical study of the faithful replication of micro/nanostructures on curved surfaces by the electrohydrodynamic instability process
Author(s) -
Li Hefu,
Yu Weixing,
Wang Taisheng,
Liu Zhenyu,
Desmulliez M. P. Y.
Publication year - 2017
Publication title -
electrophoresis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.666
H-Index - 158
eISSN - 1522-2683
pISSN - 0173-0835
DOI - 10.1002/elps.201600192
Subject(s) - electrohydrodynamics , curvature , electric field , replication (statistics) , instability , radius , substrate (aquarium) , aspect ratio (aeronautics) , nanotechnology , fabrication , materials science , nanostructure , radius of curvature , mechanics , physics , geometry , optoelectronics , mean curvature flow , mathematics , computer science , mean curvature , geology , alternative medicine , computer security , oceanography , pathology , quantum mechanics , medicine , statistics
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.