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Hydrophobicity of Teflon Coated Well-Ordered Silver Nanorod Arrays

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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.

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Acknowledgments

This work was supported by NASA/Arkansas EPSCoR Research Infrastructure Development grant administered through the Arkansas Space Grant Consortium, and by matching funds from the University of Arkansas at Little Rock (UALR). The authors would like to thank to UALR Nanotechnology Center for using their instruments.

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Authors and Affiliations

  1. Department of Applied Science, University of Arkansas at Little Rock, Little Rock, AR, 72204, U.S.A.

    Arif S. Alagoz & Tansel Karabacak

  2. Department of Systems Engineering, University of Arkansas at Little Rock, Little Rock, AR, 72204, U.S.A.

    Wisam J. Khudhayer

Authors
  1. Arif S. Alagoz
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  2. Wisam J. Khudhayer
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  3. Tansel Karabacak
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Alagoz, A.S., Khudhayer, W.J. & Karabacak, T. Hydrophobicity of Teflon Coated Well-Ordered Silver Nanorod Arrays. MRS Online Proceedings Library 1389, 13–17 (2012). https://doi.org/10.1557/opl.2012.492

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  • DOI: https://doi.org/10.1557/opl.2012.492

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