• Influence of ionic conductivity in polymer-dispersed antiferroelectric liquid crystals

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    • Keywords


      Antiferroelectric liquid crystal; Landau–Ginzburg equation; polymer cross-link; dielectric spectrum; ionic conductivity.

    • Abstract


      Dielectric properties of both in-phase and anti-phase motions of polymer-dispersed antiferroelectric liquid crystals (PDAFLC) were changed because of the influence of charge density accumulated on smectic layers and its gradient variation. The elastic constant as well as dielectric parameters were changed because of the coupling between charge density variation and the physical properties of polymer constituents such as free volumes, cross-link chains. Thetheoretical model provides a clear influence of charge density in PDAFLC which modified the dielectric parameters, such as dielectric constant, dielectric loss, dielectric strength, etc. depending on the variation of charge density as well as polymeric parameters for both in-phase and anti-phase motions. The obtained theoretical basis is discussed by considering the results with the experimental findings and the theoretical deduced equations.

    • Author Affiliations



      1. Department of Physics, Kalyani University, Kalyani 741235, India
    • Dates

  • Bulletin of Materials Science | News

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      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
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