Wettability Control and Water Droplet Dynamics on SiC-SiO2 Core-Shell Nanowires

被引：26

作者：

Kwak, Geunjae ^{[1
]}

Lee, Mikyung ^{[1
]}

Senthil, Karuppanan ^{[1
]}

Yong, Kijung ^{[1
]}

机构：

[1] Pohang Univ Sci & Technol POSTECH, Dept Chem Engn, Surface Chem Lab Elect Mat, Pohang 790784, South Korea

来源：

LANGMUIR | 2010年 / 26卷 / 14期

关键词：

SELF-ASSEMBLED MONOLAYERS; SILICON-CARBIDE NANOWIRES; FIELD-EMISSION; SUPERHYDROPHOBICITY; TRANSITIONS; DESIGN;

D O I：

10.1021/la101234p

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We present a simple method for fabricating superhydrophobic SiC-SiO2 core-shell nanowire surfaces via the facile dip-coating of alkyltrichlorosilanes. Water droplets displayed a variety of shapes with varying surface energies on the nanowire surfaces, which could be modified through chemisorption of alkyltrichlorosilanes with variable carbon chain length. The effects of UV irradiation on the superhydrophobic nanowire arrays Were also investigated. UV light efficiently decomposed the chemisorbed molecules, and the superhydrophobic surface gradually converted into a hydrophilic surface with increasing UV exposure. The water droplet impact behavior on the modified surfaces was studied to test the stability of the superhydrophobicity under dynamic conditions.

引用

页码：12273 / 12277

页数：5

共 42 条

[1] Generation of Monolayer Gradients in Surface Energy and Surface Chemistry for Block Copolymer Thin Film Studies [J].