Dielectric Anisotropy Properties of BAC-Doped 5CB Liquid Crystal

Ozdemir Z., Canli N., Okutan M., Eran B. B.

Molecular Crystals and Liquid Crystals, cilt.616, sa.1, ss.102-111, 2015 (SCI-Expanded, Scopus)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 616 Sayı: 1
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1080/15421406.2014.990283
  • Dergi Adı: Molecular Crystals and Liquid Crystals
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.102-111
  • Anahtar Kelimeler: 4-[4-(S)-2-Methylbutoxybenzoyloxy]benzoic liquid crystal acid, 5CB liquid crystal, dielectric anisotropy, splay elastic constant
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

Copyright © Taylor & Francis Group, LLC 2015.Dielectric anisotropy properties and splay elastic constant, K11 for 5CB (4-cyano-4′-pentylbiphenyl) plus 1% BAC(4-[4-(S)-2-methylbutoxybenzoyloxy]benzoic acid] have been investigated. The frequency dependent dielectric anisotropy and splay elastic constant have been calculated by using capacitance-voltage curves for various frequencies. The critical frequency, fc values of dielectric anisotropy for 4-cyano-4′-pentylbiphenyl (5CB) and 5CB+(1%)BAC composites were found to be 433.5 kHz and 439.5 kHz, respectively. It has been determined that BAC doping to 5CB decreases both threshold voltages and splay elastic constants for all frequencies applied. The decrease in K11 values has been interpreted as the decrease of distortion in the system.