The research fellowship from Japanese Society for Promotion of Science (JSPS) and the travel support from Department of Science and Technology (DST), India under Indo-Japanese Scientific Collaborative Project (IJSCP) program are gratefully acknowledged. Research grants from the Council of Scientific and Industrial Research Network Program NWP 0023 are gratefully acknowledged. This is contribution No.PPG-255 from NIIST-PPG. Supporting Information is available online from Wiley InterScience or from the authors.
Article first published online: 5 AUG 2008
Copyright © 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Advanced Functional Materials
Volume 18, Issue 17, pages 2510–2517, September 10, 2008
How to Cite
Vijayaraghavan, R. K., Abraham, S., Akiyama, H., Furumi, S., Tamaoki, N. and Das, S. (2008), Photoresponsive Glass-Forming Butadiene-Based Chiral Liquid Crystals with Circularly Polarized Photoluminescence. Adv. Funct. Mater., 18: 2510–2517. doi: 10.1002/adfm.200701230
Dedicated to Professor M.V. George on the occasion of his 80th birthday.
- Issue published online: 5 SEP 2008
- Article first published online: 5 AUG 2008
- Manuscript Revised: 8 FEB 2008
- Manuscript Received: 25 OCT 2007
- Council of Scientific and Industrial Research Network Program. Grant Number: NWP 0023
- NIIST-PPG. Grant Number: PPG-255
- liquid crystals;
- photochromic properties;
- luminescent properties
The synthesis and study of the photo- and thermoresponsive behavior of a series of novel trimesogens consisting of a diphenylbutadiene core linked to cholesterol moieties on either side via flexible alkyl chains are reported. These molecules possess the combined glass-forming properties of bischolesterols and the photochromic and luminescent properties of the butadiene moiety. The pitch of the cholesteric phase of these materials could be continuously varied thermally and photochemically, making it possible to tune the color of the film over the entire visible region. The color images thus generated could be stabilized by converting them to N* glasses. These materials were also highly photoluminescent, exhibiting circularly polarized characteristics in the glassy liquid-crystalline state even by linearly polarized excitation.