Please use this identifier to cite or link to this item: https://doi.org/10.1021/la9018025
Title: Improved hydrophobicity of carbon nanotube arrays with micropatterning
Authors: Lu, S.H.
Tun, M.H.N.
Mei, Z.J.
Chia, G.H.
Lim, X. 
Sow, C.-H. 
Issue Date: 3-Nov-2009
Citation: Lu, S.H., Tun, M.H.N., Mei, Z.J., Chia, G.H., Lim, X., Sow, C.-H. (2009-11-03). Improved hydrophobicity of carbon nanotube arrays with micropatterning. Langmuir 25 (21) : 12806-12811. ScholarBank@NUS Repository. https://doi.org/10.1021/la9018025
Abstract: The hydrophobicity of vertically aligned multiwalled carbon nanotubes (MWCNTs) was improved through the creation of a parallel array of microwalls via a laser pruning technique. Changes to the hydrophobic nature of the patterned MWCNTs due to artificially induced roughness through variations in both the widths of the walls and the distance between adjacent walls, channel width, were investigated. The sample became more hydrophobic whenever water droplets landed on one microwall 7 or 13 μm in width. However, when a droplet bridged two microwalls, the surface became less hydrophobic. The optimal superhydrophobic MWCNT surface corresponded to a parallel array of microwalls with a width of 13 μm and a channel width of ∼50 μm. Such findings could possibly serve as value-add for further developments in the creation of water-repelling CNT surfaces via micropatterning. © 2009 American Chemical Society.
Source Title: Langmuir
URI: http://scholarbank.nus.edu.sg/handle/10635/96881
ISSN: 07437463
DOI: 10.1021/la9018025
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