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Enhanced Self-Organized Dewetting of Ultrathin Polymer Films Under Water-Organic Solutions: Fabrication of Sub-micrometer Spherical Lens Arrays

Authors

  • Ankur Verma,

    1. Department of Chemical Engineering & DST unit on Nanosciences, Indian Institute of Technology Kanpur, Kanpur 208016 (India)
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  • Ashutosh Sharma

    Corresponding author
    1. Department of Chemical Engineering & DST unit on Nanosciences, Indian Institute of Technology Kanpur, Kanpur 208016 (India)
    • Department of Chemical Engineering & DST unit on Nanosciences, Indian Institute of Technology Kanpur, Kanpur 208016 (India).
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Abstract

Submicrometer spherical lenses and lens arrays are fabricated by freeing the dewetting of ultrathin (< 100 nm) polymer films from interfacial tension limitation and by harnessing the self-organization of films. The lens-size is continuously tunable from 200 nm to few tens of micrometers with contact angles ranging from 30° – 150°.

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