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Issue 14, 2011
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Biomimetic microlens array with antireflective “moth-eye” surface

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Abstract

We report a replication route to non-planar, three dimensional microlens arrays with an antireflective surface nanopattern. Our methodology uses the surface topography of the Attacus atlas moth's compound eye and a soft lithographic technique to fabricate topographically faithful moulds that, in turn, are used to reproducibly replicate the original eye surface with nanoscale fidelity. In addition to antireflection, the resulting poly(urethane) replica with its “moth-eye” nanopattern also exhibits increased hydrophobicity relative to the unpatterned polymer. The materials flexibility of the perfluoropolyether mould fabricated viareplica moulding enables, for example, the embossing of antireflective nanopatterns in the photoactive materials of organic solar cells.

Graphical abstract: Biomimetic microlens array with antireflective “moth-eye” surface

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Publication details

The article was received on 20 Feb 2011, accepted on 21 Apr 2011 and first published on 06 May 2011


Article type: Communication
DOI: 10.1039/C1SM05302G
Citation: Soft Matter, 2011,7, 6404-6407
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    Biomimetic microlens array with antireflective “moth-eye” surface

    D. Ko, J. R. Tumbleston, K. J. Henderson, L. E. Euliss, J. M. DeSimone, R. Lopez and E. T. Samulski, Soft Matter, 2011, 7, 6404
    DOI: 10.1039/C1SM05302G

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