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<p>This study investigates the optical and dielectric properties of the nematic liquid crystal 4′-heptyl[1,1′-biphenyl]-4-carbonitrile (7CB) doped with tin nanoparticles (Sn-NPs) at concentrations of 0.2, 0.4, and 0.6 wt% in both planar and homeotropic aligned cells. The results reveal that the liquid crystal system exhibits the most enhanced dielectric response at a doping concentration of 0.4 wt% Sn-NPs. Furthermore, dielectric analysis indicates the presence of a single relaxation process in both types of aligned cells. These findings highlight potential role of tin nanoparticles in modifying and optimizing the dielectric performance of nematic liquid crystal systems.</p>

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Dielectric Properties of the Positive Dielectric Anisotropic Nematic Liquid Crystal 4’-Heptyl[1,1’-biphenyl]-4-Carbonitrile with the Dispersion of the Tin Nanoparticles (Sn-NPs) for the Photonic and Display Applications

  • 期刊论文

  • 发表日期：

    2026年5月25日

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  • Ankur Srivastava,
  • Pravesh K. Vishwakarma,
  • Amar Bahadur Verma,
  • Prashant K. Singh,
  • Sindhu Singh,
  • Pankaj Kumar Tripathi,
  • Anoop K. Srivastava,
  • Anil Kumar

摘要

This study investigates the optical and dielectric properties of the nematic liquid crystal 4′-heptyl[1,1′-biphenyl]-4-carbonitrile (7CB) doped with tin nanoparticles (Sn-NPs) at concentrations of 0.2, 0.4, and 0.6 wt% in both planar and homeotropic aligned cells. The results reveal that the liquid crystal system exhibits the most enhanced dielectric response at a doping concentration of 0.4 wt% Sn-NPs. Furthermore, dielectric analysis indicates the presence of a single relaxation process in both types of aligned cells. These findings highlight potential role of tin nanoparticles in modifying and optimizing the dielectric performance of nematic liquid crystal systems.