Abstract
Electroconvection of liquid crystals does not only lead to a large variety of spontaneously formed patterns, but these patterns can also be used as a template for the fabrication of polymer surfaces exhibiting a periodic bold relief. Here, a useful room-temperature nematic mixture consisting of two photostable liquid crystals and a photosensitive cross-linker is presented. Its stability diagram in the frequency-voltage plane, the influence of monomer concentration and the topography of the resulting polymer surfaces are described.
Acknowledgements
The authors would like to thank Yoshiki Hidaka for illuminating discussions. Financial support by the Deutsche Forschungsgemeinschaft (project KI 411/5-2) is gratefully acknowledged.