Droplet manipulation of hierarchical steel surfaces using femtosecond laser fabrication

被引：17

作者：

Hu, Songtao ^{[1
]}

Reddyhoff, Tom ^{[2
]}

Puhan, Debashis ^{[3
]}

Vladescu, Sorin-Cristian ^{[2
]}

Shi, Xi ^{[1
]}

Dini, Daniele ^{[2
]}

Peng, Zhike ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, State Key Lab Mech Syst & Vibrat, Shanghai 200240, Peoples R China

[2] Imperial Coll London, Dept Mech Engn, London SW7 2AZ, England

[3] Univ Cambridge, Dept Chem, Cambridge CB2 1EW, England

来源：

APPLIED SURFACE SCIENCE | 2020年 / 521卷

基金：

英国工程与自然科学研究理事会; 中国博士后科学基金; 中国国家自然科学基金;

关键词：

Femtosecond laser; Hierarchical structure; Hydrophobic surface; Droplet manipulation; SUPERHYDROPHOBIC SURFACES; CONTACT TIME; WETTABILITY; LEAF;

D O I：

10.1016/j.apsusc.2020.146474

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Femtosecond laser irradiation is one of the most promising treatments to fabricate liquid repellent surfaces, attracting substantial scientific and industrial attention. So far, the focus has been on hierarchical interfacial structures at micro- and nanoscales, however, this has yet to be used in combination with macro -sized features. We present a strategy of femtosecond laser irradiation to create macro -micro -nano hierarchical surfaces for liquid droplet manipulation. These three -level hierarchical surfaces are shown to successfully split and gyrate impacting droplets. Our work is believed to be the first demonstration of femtosecond-laser-structured macro - micro -nano hierarchical surfaces to artificially design droplet impact, paving the way for aircraft anti -icing and energy harvesting.

引用

页数：7

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