Wetting characteristics on hierarchical structures patterned by a femtosecond laser

被引：51

作者：

Zhang, Dongshi ^{[1
]}

Chen, Feng ^{[1
]}

Fang, Guoping ^{[2
]}

Yang, Qing ^{[1
]}

Xie, Degang ^{[2
]}

Qiao, Guanjun ^{[2
]}

Li, Wen ^{[3
]}

Si, Jinhai ^{[1
]}

Hou, Xun ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Key Lab Photon Technol Informat, Xian 710049, Peoples R China

[2] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China

[3] Nanchang Hangkong Univ, Sch Mat Sci & Engn, Nanchang 330063, Peoples R China

来源：

JOURNAL OF MICROMECHANICS AND MICROENGINEERING | 2010年 / 20卷 / 07期

基金：

美国国家科学基金会;

关键词：

HIGH-ASPECT-RATIO; SUPERHYDROPHOBIC SURFACES; CONTACT-ANGLE; FABRICATION; SILICON; WATER; GLASS; WETTABILITY; CONDENSATION; HYSTERESIS;

D O I：

10.1088/0960-1317/20/7/075029

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Micro-scale hierarchical structures consisting of parallel grooves decorated by embossed triangle patterns are prepared by femtosecond laser irradiation on silicon (Si) wafers. The effects of surface morphology on wetting properties are investigated, and the results show that increasing the vertex angle of the triangle and groove spacing will lead to the enhancement of wettability and anisotropy, respectively. The structured surfaces also exhibit high adhesive force with droplets remaining attached to the surface even when the sample is turned upside down. Furthermore, the evaporation process of a water droplet on such an anisotropic surface is characterized to study its dynamic wetting behavior.

引用

页数：8

共 61 条

[1] Water dispersible silanes for wettability modification of polysilicon [J].

Almanza-Workman, AM ;

Raghavan, S ;

Deymier, P ;

Monk, DJ ;

Roop, R .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (01) :H6-H11

[2]

[Anonymous], 1964, Contact Angle Hysteresis, DOI DOI 10.1021/BA-1964-0043.CH007

[3] Photocontrolled variations in the wetting capability of photochromic polymers enhanced by surface nanostructuring [J].

Athanassiou, A ;

Lygeraki, MI ;

Pisignano, D ;

Lakiotaki, K ;

Varda, M ;

Mele, E ;

Fotakis, C ;

Cingolani, R ;

Anastasiadis, SH .

LANGMUIR, 2006, 22 (05) :2329-2333

[4] 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

[5] Bio-inspired water repellent surfaces produced by ultrafast laser structuring of silicon [J].

Barberoglou, M. ;

Zorba, V. ;

Stratakis, E. ;

Spanakis, E. ;

Tzanetakis, P. ;

Anastasiadis, S. H. ;

Fotakis, C. .

APPLIED SURFACE SCIENCE, 2009, 255 (10) :5425-5429

[6] Fabrication of high-aspect ratio, micro-fluidic channels and tunnels using femtosecond laser pulses and chemical etching [J].

Bellouard, Y ;

Said, A ;

Dugan, M ;

Bado, P .

OPTICS EXPRESS, 2004, 12 (10) :2120-2129

[7] Self-cleaning surfaces - virtual realities [J].

Blossey, R .

NATURE MATERIALS, 2003, 2 (05) :301-306

[8]

Callies M, 2005, SOFT MATTER, V1, P55, DOI 10.1039/b501657f

[9] Wettability of porous surfaces. [J].

Cassie, ABD ;

Baxter, S .

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

[10] Wettabilities of self-assembled monolayers on gold generated from progressively fluorinated alkanethiols [J].

Colorado, R ;

Lee, TR .

LANGMUIR, 2003, 19 (08) :3288-3296

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