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Hydrophobicity of Teflon Coated Well-Ordered Silver Nanorod Arrays

Published online by Cambridge University Press:  16 March 2012

Arif S. Alagoz ,
Wisam J. Khudhayer  and
Tansel Karabacak
Arif S. Alagoz
Affiliation:
Department of Applied Science, University of Arkansas at Little Rock, Little Rock, AR 72204, U.S.A.
Wisam J. Khudhayer
Affiliation:
Department of Systems Engineering, University of Arkansas at Little Rock, Little Rock, AR 72204, U.S.A.
Tansel Karabacak
Affiliation:
Department of Applied Science, University of Arkansas at Little Rock, Little Rock, AR 72204, U.S.A.
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Abstract

From wings of flies to plant leafs, hydrophobic surfaces are well-common in nature. Many of these surfaces have micro and nano hierarchical structures coated with low surface energy layer. In this work, we mimicked similar structure by fabricating Teflon coated periodic and well-ordered silver nanorod arrays and investigated the effect of nanorod separation on water contact angle (WCA). The silver nanorod arrays were deposited on patterned and flat silicon substrates using glancing angle deposition (GLAD) technique. Then a thin layer of Teflon was deposited on the silver nanorods by small angle deposition (SAD) technique. A systematic increase in water contact angle was observed with increasing nanorod separation which is attributed to the decreased area fraction of solid-liquid interface.

Keywords

Agnanostructuresurface chemistry
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1389: Symposium G – Applications of Hierarchical 3D Structures , 2012 , mrsf11-1389-g03-19
Copyright
Copyright © Materials Research Society 2012

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References

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