PHOTO INDUCED EFFECTS IN NEMATIC LIQUID CRYSTAL DOPED WITH FER ROELECTRIC NANOPOWDER

Liquid crystals are soft materials of self assembling media on a nanoscale level composed of anisotropic molecules. A nematic liquid crystal phase is characterized by a high degree of long range orientational order .The present paper is a study of optical properties of nematic liquid crystal doped with ferroelectric nanopowder. When ferroelectric nanoparticles are doped in nematic liquid crystal,their large dipole and high p olarizability can lead to strong interaction with liquid crystal molecules. The investigations were done with various techniques viz: Data Thermal Analysis, Fourier Transformed Infrared Spectroscopy, Ultraviolet Spectroscopy and Fabery Perot Spectroscopic Study.