Kumar, A. and Prakash, J. and Goel, P. and Khan, T. and Dhawan, S. K. and Silotia, P. and Biradar, A. M. (2009) Polymeric-nanoparticles–induced vertical alignment in ferroelectric liquid crystals. EPL (Europhysics Letters), 88 (2). pp. 1-7. ISSN 0295-5075

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Abstract

Here, we report the polymeric (copolymer of benzene and pentacene) nanoparticles (PNPs) induced vertical alignment in ferroelectric liquid crystals (FLCs). The nanoparticles used in this study have been synthesized via chemical route method. The PNPs have been doped in FLC mixture. It has been observed that pentacene molecules (presented in PNPs used) prefer an upright orientation on the indium-tin-oxide–coated surfaces, which in turn provide assistance to align FLC molecules vertically (or homeotropically). It has also been observed that the addition of PNPs into the FLC materials improves the electro-optical response. However, the transition temperatures of the PNPs-doped FLC materials have been lowered. These findings will provide a fascinating tool to align FLC materials devoid of any surface treatment. Moreover, these studies would be helpful in the realization of low threshold and faster liquid crystal display devices.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Institute of Physics.
Subjects:	Physics
Divisions:	UNSPECIFIED
Depositing User:	Ms Neetu Chandra
Date Deposited:	27 Sep 2012 07:08
Last Modified:	27 Sep 2012 07:08
URI:	http://npl.csircentral.net/id/eprint/614

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