Advanced Materials

Stooped Nanohairs: Geometry-Controllable, Unidirectional, Reversible, and Robust Gecko-like Dry Adhesive

Authors

  • Tae-il Kim,

    1. School of Chemical and Biological Engineering Seoul National University Seoul, 151–742 (Korea)
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  • Hoon Eui Jeong,

    1. School of Mechanical and Aerospace Engineering and Institute of Advanced Machinery and Design Seoul National University Seoul, 151–742 (Korea)
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  • Kahp Y. Suh,

    Corresponding author
    1. School of Mechanical and Aerospace Engineering and Institute of Advanced Machinery and Design Seoul National University Seoul, 151–742 (Korea)
    • School of Mechanical and Aerospace Engineering and Institute of Advanced Machinery and Design Seoul National University Seoul, 151–742 (Korea).
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  • Hong H. Lee

    Corresponding author
    1. School of Chemical and Biological Engineering Seoul National University Seoul, 151–742 (Korea)
    • School of Chemical and Biological Engineering Seoul National University Seoul, 151–742 (Korea).
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Abstract

A simple yet robust method to fabricate an array of stooped nanohairs is presented, with a proper choice of material and post e-beam exposure even for an aspect ratio of 10. The stooped nanohairs have the unidirectional feature of frictional adhesion with a remarkably high adhesion force (∼11 N cm−2).

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