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The primary aim of this present study is to examine the temperature-dependent variations in the dielectric characteristics of LC 4ʹ-octyl-4-biphenylcarbonitrile (widely recognized as 8CB). Our findings reveal that the value of \(\varepsilon^{\prime}\) depends on concentration and diffusion coefficient of mobile ions present in the doped and undoped 8CB. Additionally, we observe that in the plots of \(\varepsilon^{\prime\prime}\) and \(\tan \delta\) as a function of frequency, the relaxation peaks shift towards higher side in the doped system. The voltage-dependent behavior of these samples was also examined.

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Temperature-Dependent Dielectric Properties of Undoped and Doped 8CB

  • 会议论文

  • 发表日期：

    2026年

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  • Apurba Tiwari,
  • Akash Kumar,
  • Randeep Kaur,
  • Harmandeep Singh

摘要

The primary aim of this present study is to examine the temperature-dependent variations in the dielectric characteristics of LC 4ʹ-octyl-4-biphenylcarbonitrile (widely recognized as 8CB). Our findings reveal that the value of \(\varepsilon^{\prime}\) depends on concentration and diffusion coefficient of mobile ions present in the doped and undoped 8CB. Additionally, we observe that in the plots of \(\varepsilon^{\prime\prime}\) and \(\tan \delta\) as a function of frequency, the relaxation peaks shift towards higher side in the doped system. The voltage-dependent behavior of these samples was also examined.