Issue 14, 2011

Biomimetic microlens array with antireflective “moth-eye” surface

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

Supplementary files

Article information

Article type
Communication
Submitted
20 Feb 2011
Accepted
21 Apr 2011
First published
06 May 2011

Soft Matter, 2011,7, 6404-6407

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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