Please use this identifier to cite or link to this item:
http://hdl.handle.net/2289/1662
Title: | Bistable linear electro-optical switching in the B7 phase of novel bent-core molecules |
Authors: | Umadevi, S. Jakli, A. Sadashiva, B.K. |
Issue Date: | 2006 |
Publisher: | Royal Society of Chemistry |
Citation: | Soft Matter, 2006, Vol.2, p215-222 |
Abstract: | Three novel symmetrical bent-core compounds were synthesized where the terminal alkoxy linkages of the original bent-core mesogen forming a B2 phase was converted to n-alkyl carboxylates. It is found that instead of the B2 phase, all three compounds exhibit a transition between B7 and B2 mesophases. The physical and electro-optical properties have been investigated by polarizing optical microscopy, differential scanning calorimetry, X-ray diffraction and electric field experiments. The higher temperature B7 phase has been shown to exhibit bistable but analogous linear electro-optical switching without any observable polarization peak. We analyze two theoretical models and find that a local triclinic symmetry may be responsible for the unusual electro-optical switching. |
Description: | Restricted Access. |
URI: | http://hdl.handle.net/2289/1662 |
ISSN: | 1744-683X 1744-6848 (Online) |
Alternative Location: | http://dx.doi.org/10.1039/b515933d |
Copyright: | (2006) by Royal Society of Chemistry. |
Appears in Collections: | Research Papers (SCM) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
2006 Soft Matter V2 p215-222.pdf Restricted Access | Restricted Access. | 679.35 kB | Adobe PDF | View/Open Request a copy |
Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.