This research was supported by the US Office of Naval Research under grant N00014–99–1–0899 and the National Science Foundation under grant DMR-9904321. The authors gratefully acknowledge valuable conversations with S. Shiyanovskii and O. Lavrentovich, and thank the former for permission to include in Figure 3 a schematic rendering of a director profile based on results of their computer simulations .
Spatial and Orientational Templating of Semiconducting Polymers in a Cholesteric Liquid Crystal†
Article first published online: 19 APR 2004
Copyright © 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Advanced Functional Materials
Volume 14, Issue 4, pages 329–334, April, 2004
How to Cite
Kang, S.-W., Jin, S.-H., Chien, L.-C. and Sprunt, S. (2004), Spatial and Orientational Templating of Semiconducting Polymers in a Cholesteric Liquid Crystal. Adv. Funct. Mater., 14: 329–334. doi: 10.1002/adfm.200305083
- Issue published online: 19 APR 2004
- Article first published online: 19 APR 2004
- Manuscript Accepted: 3 FEB 2004
- Manuscript Received: 9 OCT 2003
- Liquid crystals, cholesteric;
- Polymers, semiconducting;
- Template-directed assembly
A one-dimensional pattern-forming state of a cholesteric liquid crystal (CLC) is used as a template for the self-organization of ordered, spatially orientated, acetylene-based semiconducting polymers. The polymers are formed by metathesis reaction with all chemical components contained in an ordinary electro-optic cell. The polymer morphology consists of parallel ∼ 1 μm thick bundles, uniformly spaced at ∼ 10 μm over the full macroscopic active area of the cell substrates. The polymer templating can be explained by a model that predicts a corrugation in polymer density determined by the spatially periodic profile of the orientational energy density associated with the pattern-forming CLC state.