Orientation of ferroelectric liquid crystals by self-assembled bilayer molecular assembly

摘要

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.