Electrowetting of superhydrophobic ZnO nanorods

被引:75
作者
Campbell, Jos Laurie [1 ,2 ]
Breedon, Michael [2 ]
Latham, Kay [3 ]
Kalantar-Zadeh, Kourosh [1 ]
机构
[1] RMIT Univ, Sch Elect & Comp Engn, Melbourne, Vic 3001, Australia
[2] RMIT Univ, Sch Appl Sci, Dept Biol & Biotechnol, Melbourne, Vic 3001, Australia
[3] RMIT Univ, Sch Appl Sci, Dept Appl Chem, Melbourne, Vic 3001, Australia
关键词
D O I
10.1021/la7030413
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
This paper reports the electrowetting properties of ZnO nanorods. These nanorods were grown on indium tin oxide (ITO) substrates using different liquid-phase deposition techniques and hydrophobized with sputtered Teflon. The surfaces display superhydrophobic properties. When the applied voltages are less than 35 V, the contact angle change is small and exhibits instant reversibility. For higher voltages, larger contact angle changes were observed. However, the surface was not reversible after removing the applied voltage and required mechanical agitation to return to its initial superhydrophobic state.
引用
收藏
页码:5091 / 5098
页数:8
相关论文
共 45 条
[1]   Actuation potentials and capillary forces in electrowetting based microsysterns [J].
Berthier, Jean ;
Dubois, Philippe ;
Clementz, Philippe ;
Claustre, Patricia ;
Peponnet, Christine ;
Fouillet, Yves .
SENSORS AND ACTUATORS A-PHYSICAL, 2007, 134 (02) :471-479
[2]   Wettability of porous surfaces. [J].
Cassie, ABD ;
Baxter, S .
TRANSACTIONS OF THE FARADAY SOCIETY, 1944, 40 :0546-0550
[3]   Digitally tunable microfluidic optical fiber devices [J].
Cattaneo, F ;
Baldwin, K ;
Yang, S ;
Krupenkine, T ;
Ramachandran, S ;
Rogers, JA .
JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, 2003, 12 (06) :907-912
[4]   Integrated polymerase chain reaction chips utilizing digital microfluidics [J].
Chang, Yi-Hsien ;
Lee, Gwo-Bin ;
Huang, Fu-Chun ;
Chen, Yi-Yu ;
Lin, Jr-Lung .
BIOMEDICAL MICRODEVICES, 2006, 8 (03) :215-225
[5]  
CHEN CY, 2003, SUMM BIOENG CSON BEA
[6]  
CRASSOUS J, 2004, P SPIE, V23
[7]   Reversible electrowetting of vertically aligned superhydrophobic carbon nanofibers [J].
Dhindsa, Manjeet S. ;
Smith, Neil R. ;
Heikenfeld, Jason ;
Rack, Philip D. ;
Fowlkes, Jason D. ;
Doktycz, Mitchel J. ;
Melechko, Anatoli V. ;
Simpson, Micheal L. .
LANGMUIR, 2006, 22 (21) :9030-9034
[8]  
FAIR RB, 2003, EL DEV M DUK U DURH
[9]   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
[10]   Intelligent control of surface hydrophobicity [J].
Gras, Sally L. ;
Mahmud, Tanveer ;
Rosengarten, Gary ;
Mitchell, Arnan ;
Kalantar-Zadeh, Kourosh .
CHEMPHYSCHEM, 2007, 8 (14) :2036-2050