[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.4313/TEEM.2013.14.3.111

Dielectric and Optical Study of Polymer Nematic Liquid Crystal Composite

Manohar, S. (Department of Physics, R M L Awadh University)
Shukla, S.N. (Department of Physics, R M L Awadh University)
Chandel, V.S. (Department of Physics, Integral University)
Shukla, J.P. (Department of Physics, University of Lucknow)
Manohar, R. (Department of Physics, University of Lucknow)

Publication Information

Transactions on Electrical and Electronic Materials / v.14, no.3, 2013 , pp. 111-115 More about this Journal

Abstract

The dielectric anisotropy and dispersion of the real and imaginary part of the permittivity of commercially important nematic mixture E-24 and its polymer composite were investigated in the frequency range from 1 kHz to 10 MHz, and temperature range $14^{\circ}C$ to $55^{\circ}C$ . The percentage optical transmittance and density have also been measured for both the systems. The results have been explained by assuming molecular rotation about the long molecular axis, under a hindering nematic potential. The dielectric anisotropy ${\Delta}{\varepsilon}$ is positive, and the mean dielectric permittivity falls with rising temperature. ${\Delta}{\varepsilon}$ is also used to determine the order parameter with varying temperature.

Keywords

Nematic liquid crystal; Polymer; Order parameter; Optical transmittance; Dielectric constant;

Citations & Related Records

Times Cited By KSCI : 1 (Citation Analysis)

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