A Novel SESC Microstructure to Realize Various Spontaneously Liquid Spreading Properties

Wen Hong, Longjun Tang, Bowen Ji, Wenxi Sun, Bin Yang, Xiaolin Wang, Jingquan Liu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We report design and fabrication of a novel microstructure with both sharp edge and sharp corner (SESC) in its topography, which can be tailored to achieve various liquid spreading properties. The sharp edge of the SESC microstructure can hinder liquid spreading in one direction, while the sharp corner can enhance liquid spreading in another direction. By utilizing the two opposite effects of the sharp edge and the sharp corner, two different types of anisotropic wetting properties are demonstrated, including bidirectional water spreading on a 2-D SESC microstructure and unidirectional water spreading on a 3-D SESC microstructure. On the fabricated 2-D SESC microstructure, contact angle difference in parallel and perpendicular direction can reach 93.8°, which is the highest in published works.

Original languageEnglish
Title of host publication2019 IEEE 32nd International Conference on Micro Electro Mechanical Systems, MEMS 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages400-403
Number of pages4
ISBN (Electronic)9781728116105
DOIs
StatePublished - Jan 2019
Externally publishedYes
Event32nd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2019 - Seoul, Korea, Republic of
Duration: 27 Jan 201931 Jan 2019

Publication series

NameProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
Volume2019-January
ISSN (Print)1084-6999

Conference

Conference32nd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2019
Country/TerritoryKorea, Republic of
CitySeoul
Period27/01/1931/01/19

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