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    • Keywords


      Ferroelectricity; nanoparticle; dielectric property; electro-optical property.

    • Abstract


      The present paper deals with the characterization of a ferroelectric liquid crystal–nanoparticle (FLC–NP) composite system. The dielectric, electrical and polarization property of the FLC–NP composite system have been studied as a function of temperature and frequency. Ferroelectric Cu-doped ZnO (Cu–ZnO) nanoparticles have been added to the pure ferroelectric liquid crystal (FLC) Felix 17/100. The nanoparticles are bigger in size as compared to FLC molecules; therefore, they distort the existing geometry of FLC matrix and set up an antiparallel correlation with the dipole moments of the host FLC molecules. This antiparallel correlation of guest–host geometry reduces the net ferroelectricity of the composite system and modifies all the physical properties of the pure FLC. The change in properties has been analysed and explained in the light of guest–host interaction.

    • Author Affiliations


      Dharmendra Pratap Singh1 Swadesh Kumar Gupta1 Satya Prakash Yadav1 2 P K Sharma3 4 A C Pandey3 Rajiv Manohar1

      1. Liquid Crystal Research Lab, Department of Physics, University of Lucknow, Lucknow 226 007, India
      2. Department of Physics, Banaras Hindu University, Varanasi 221 005, India
      3. Nanotechnology Application Centre, University of Allahabad, Allahabad 211 002, India
      4. Department of Physics, Indian School of Mines, Dhanbad 826 004, India
    • Dates

  • Bulletin of Materials Science | News

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      Posted on July 25, 2019

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