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Orientation of Ferroelectric Liquid Crystals by Self-Assembled Bilayer Molecular Assembly

Published online by Cambridge University Press:  15 March 2011

Sukhmal C. Jain ,
Vivechana Dixit ,
Vinod K. Tanwar  and
S. M. Shivaprasad
Sukhmal C. Jain
Affiliation:
Polymeric and Soft Materials Division, National Physical Laboratory, Dr. K.S. Krishnan Road, New Delhi-110012, India
Vivechana Dixit
Affiliation:
Polymeric and Soft Materials Division, National Physical Laboratory, Dr. K.S. Krishnan Road, New Delhi-110012, India
Vinod K. Tanwar
Affiliation:
Polymeric and Soft Materials Division, National Physical Laboratory, Dr. K.S. Krishnan Road, New Delhi-110012, India
S. M. Shivaprasad
Affiliation:
Polymeric and Soft Materials Division, National Physical Laboratory, Dr. K.S. Krishnan Road, New Delhi-110012, India
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Abstract

Molecular films of amino propyl triethoxy silane (APTES) attached with cinnamoyl moieties were deposited on indium tin oxide (ITO) coated glass and quartz substrates by self-assembly technique. The deposition of the monolayer films resulted in a large change in the wettability of the substrates. X-ray photoelectron spectroscopy (XPS) and UV-spectroscopy were used to study the structure and properties of the grown films. The molecular assembly was photodimerized by irradiating it with a linearly polarized UV-light. Thus created polymer-solid interface has been shown to produce good, stable planar orientation of ferroelectric liquid crystal mixtures. The electro-optical and switching properties of the ferroelectric liquid crystal cells have been investigated and found to be quite similar to those prepared in conventional manner.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 709: Symposium CC – Advances in Liquid Crystalline Materials and Technologies , 2001 , CC1.4.1
Copyright
Copyright © Materials Research Society 2002

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