Patterned Superhydrophobic Metallic Surfaces

被引：759

作者：

Kietzig, Anne-Marie ^{[1
]}

Hatzikiriakos, Savvas G. ^{[1
]}

Englezos, Peter ^{[1
]}

机构：

[1] Univ British Columbia, Dept Chem & Biol Engn, Vancouver, BC V6T 1Z3, Canada

来源：

LANGMUIR | 2009年 / 25卷 / 08期

关键词：

WATER-REPELLENT; CARBON-DIOXIDE; ROUGH SURFACES; LOTUS; MICROSTRUCTURES; SILICON; HYDROPHOBICITY; DECOMPOSITION; WETTABILITY; MAGNETITE;

D O I：

10.1021/la8037582

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

This work shows that after creating certain dual scale roughness structures by femtosecond laser irradiation different metal alloys initially show superhydrophilic behavior with complete wetting of the structured surface. However, over time, these surfaces become nearly superhydrophobic with contact angles in the vicinity of 150 degrees and superhydrophobic with contact angles above 150 degrees. The contact angle hysteresis was found to lie between 2 and 6 degrees. The change in wetting behavior correlates with the amount of carbon on the structured surface. The explanation for the time dependency of the surface wettability lies in the combined effect of surface morphology and surface chemistry.

引用

页码：4821 / 4827

页数：7

共 38 条

[1]

Superhydrophobic surfaces prepared by microstructuring of silicon using a femtosecond laser [J].

Baldacchini, Tommaso ;

Carey, James E. ;

Zhou, Ming ;

Mazur, Eric .

LANGMUIR, 2006, 22 (11) :4917-4919

[2]

Purity of the sacred lotus, or escape from contamination in biological surfaces [J].

Barthlott, W ;

Neinhuis, C .

PLANTA, 1997, 202 (01) :1-8

[3]

Bauerle D., 2011, LASER PROCESSING CHE

[4]

Universal, geometry-driven hydrophobic behaviour of bare metal nanowire clusters [J].

Bhattacharya, Priyanka ;

Gohil, Smita ;

Mazher, Javed ;

Ghosh, Shankar ;

Ayyub, Pushan .

NANOTECHNOLOGY, 2008, 19 (07)

[5]

SEMICONDUCTOR SURFACE DAMAGE PRODUCED BY RUBY LASERS [J].

BIRNBAUM, M .

JOURNAL OF APPLIED PHYSICS, 1965, 36 (11) :3688-&

[6]

Hydrophobicity, adhesion, and friction properties of nanopatterned polymers and scale dependence for micro- and nanoelectromechanical systems [J].

Burton, Z ;

Bhushan, B .

NANO LETTERS, 2005, 5 (08) :1607-1613

[7]

Wettability of porous surfaces. [J].

Cassie, ABD ;

Baxter, S .

TRANSACTIONS OF THE FARADAY SOCIETY, 1944, 40 :0546-0550

[8]

Effects of micro- and nano-structures on the self-cleaning behaviour of lotus leaves [J].

Cheng, YT ;

Rodak, DE ;

Wong, CA ;

Hayden, CA .

NANOTECHNOLOGY, 2006, 17 (05) :1359-1362

[9]

Formation of conical microstructures upon laser evaporation of solids [J].

Dolgaev, SI ;

Lavrishev, SV ;

Lyalin, AA ;

Simakin, A ;

Voronov, VV ;

Shafeev, GA .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2001, 73 (02) :177-181

[10]

Super-hydrophobic surfaces: From natural to artificial [J].

Feng, L ;

Li, SH ;

Li, YS ;

Li, HJ ;

Zhang, LJ ;

Zhai, J ;

Song, YL ;

Liu, BQ ;

Jiang, L ;

Zhu, DB .

ADVANCED MATERIALS, 2002, 14 (24) :1857-1860

← 1 2 3 4 →