Abstract
In this paper a nano-molding process using a nature-created master is demonstrated. The eye of night moth Agotis exclamationis having 100 nm-scale structures on a curved surface is used as biomimetic master mold from which nanostructures are replicated onto a flat substrate. Suitable conditions of this simple and cost-efficient process allows for minimal texture damage. The fabrication consists of two steps: first, a negative PDMS mold of the curved eye surface is made, and second, the flexible mold is replicated into a hybrid UV sensitive polymer, on a flat substrate. An accurate copy of the master surface with dense arrays of 200 nm high and 100-120 nm wide posts are generated, thus preserving the integrity of the nanostructures. The known anti-reflecting optical properties of the moth eye were reproduced with a reflectivity reduced by a factor of 2.
Original language | English |
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Pages (from-to) | 269-271 |
Number of pages | 3 |
Journal | Microelectronic Engineering |
Volume | 97 |
DOIs | |
Publication status | Published - Sep 2012 |
Externally published | Yes |
Keywords
- Antireflective
- Biomimetic
- Nanostructures
- Replication
- Soft lithography