The aim of the rollerNIL project is to use roller-based nanoimprinting techniques to create complex optical structures over a large area in order to particularly replicate biomimetic structural colors. Associated nanoimprint masters and the imprint processes will be developed, an inline process measurement system for roller-based fabrication will be set up. The imprinting of undercut structures investigated in this project represents a significant development in NIL and is intended to show its large-scale applicability for biomimetic structural colors.
The Institute MATERIALS has extensive experience in the field of biomimetics (Micro- and nanoscale fabrication processes). The fabrication of imprint masters inspired by natural structures and their reproduction is one of our core competencies. The rollerNIL project deepens our expertise in this complex area.
Example from: M. R. Belegratis, V. Schmidt, D. Nees, B. Stadlober, P. Hartmann, "Diatom-inspired templates for 3D replication: natural diatoms versus laser written artificial diatoms"; Bioinspir Biomim. 9(1):016004 (2014)