Superhydrophobic surfaces by replication of micro/nano-structures fabricated by ultrafast-laser-microtexturing

被引：59

作者：

Nayak, Barada K. ^{[1
]}

Caffrey, Paul O. ^{[1
]}

Speck, Christian R. ^{[1
]}

Gupta, Mool C. ^{[1
]}

机构：

[1] Univ Virginia, Charles L Brown Dept Elect & Comp Engn, Charlottesville, VA 22904 USA

来源：

APPLIED SURFACE SCIENCE | 2013年 / 266卷

关键词：

Ultrafast lasers; Surface texture; Superhydrophobic surfaces; Contact angle; FEMTOSECOND LASER; THIN-FILMS; WETTABILITY; SILICON; WATER; DEPOSITION; REPELLENT; ALIGNMENT; DROPLET;

D O I：

10.1016/j.apsusc.2012.11.052

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：

We report a simple and inexpensive method of producing superhydrophobic surfaces by directly replicating micro/nano-structures on to poly(dimethylsiloxane) (PDMS) from a replication master prepared by ultrafast-laser microtexturing process. No additional coatings on PDMS have been required to achieve contact angles greater than 154 degrees. The contact angle can be controlled by changing the height of the microtextures in PDMS. Very low optical reflection properties of micro/nano textured surfaces combined with superhydrophobic characteristics make it an attractive encapsulating material for photovoltaics and other applications. Additionally, this replication method can be applied for large scale production of micro/nano textured superhydrophobic surfaces for commercial applications. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：27 / 32

页数：6

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