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Advances in Condensed Matter Physics
Volume 2012, Article ID 853160, 8 pages
Research Article

Electrooptic and Dielectric Studies in Cadmium Sulphide Nanorods/Ferroelectric Liquid Crystal Mixtures

1Liquid Crystal Research Laboratory, Department of Physics, Dr. B. R. Ambedkar National Institute of Technology, Punjab, Jalandhar 144 011, India
2Materials Research Laboratory, School of Physics and Materials Science, Thapar University, Punjab, Patiala 147 004, India

Received 13 August 2012; Accepted 31 August 2012

Academic Editor: Victor V. Moshchalkov

Copyright © 2012 Praveen Malik et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We present the results based on the electrooptic and dielectric studies in cadmium sulphide (CdS) nanorods/ferroelectric liquid crystal mixtures. Doping of CdS nanorods increases the spontaneous polarization and response time, which due to large dipole-dipole interaction and increase in anchoring energies exists between nanorods and FLC molecules. Dielectric measurements revealed a decrease (~40% for 0.3% CdS in FLC) in permittivity and dielectric strength in doped sample cell than pure FLC mixture. A decrease in dc conductivity and relaxation frequency with doping concentration was also noticed. The preexponent factor and fractional exponent factor are found as predicated by existing theories.