Bio-inspired water repellent surfaces produced by ultrafast laser structuring of silicon

被引：124

作者：

Barberoglou, M. ^{[1
,2
]}

Zorba, V. ^{[1
,2
]}

Stratakis, E. ^{[1
,3
,4
]}

Spanakis, E. ^{[1
,3
,4
]}

Tzanetakis, P. ^{[1
,2
]}

Anastasiadis, S. H. ^{[1
,5
]}

Fotakis, C. ^{[1
,2
]}

机构：

[1] Fdn Res & Technol Hellas IESL FORTH, Inst Elect Struct & Laser, Iraklion 71110, Greece

[2] Univ Crete, Dept Phys, Iraklion 71409, Greece

[3] Univ Crete, Dept Mat Sci & Technol, Iraklion 71003, Greece

[4] Technol Educ Inst Crete, Iraklion 71004, Greece

[5] Aristotle Univ Thessaloniki, Dept Chem Engn, Thessaloniki 54124, Greece

来源：

APPLIED SURFACE SCIENCE | 2009年 / 255卷 / 10期

关键词：

Laser ablation; Silicon; Superhydrophobicity; Water repellence; TRANSITIONS; FILMS;

D O I：

10.1016/j.apsusc.2008.07.130

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 here an efficient method for preparing stable superhydrophobic and highly water repellent surfaces by irradiating silicon wafers with femtosecond laser pulses and subsequently coating them with chloroalkylsilane monolayers. By varying the laser pulse fluence on the surface one can successfully control its wetting properties via a systematic and reproducible variation of roughness at micro- and nano-scale, which mimics the topology of natural superhydrophobic surfaces. The self-cleaning and water repellent properties of these artificial surfaces are investigated. It is found that the processed surfaces are among the most water repellent surfaces ever reported. These results may pave the way for the implementation of laser surface microstructuring techniques for the fabrication of superhydrophobic and self-cleaning surfaces in different kinds of materials as well. (C) 2008 Elsevier B. V. All rights reserved.

引用

页码：5425 / 5429

页数：5

共 29 条

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