Molecular orientation of nickel phthalocyanine doped nematic liquid crystal composite under magnetic field

Ozdemir Z. G., YILMAZ CANLI N., KILIÇ M., KÖYSAL O., Yilmaz O., OKUTAN M.

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, cilt.634, sa.1, ss.1-11, 2016 (SCI-Expanded, Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 634 Sayı: 1
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1080/15421406.2016.1177889
  • Dergi Adı: MOLECULAR CRYSTALS AND LIQUID CRYSTALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1-11
  • Anahtar Kelimeler: Liquid crystal, Nickel phthalocyanine, dielectric properties, magnetic sensitivity, molecular orientation, FREQUENCY-DEPENDENT CONDUCTIVITY, DIELECTRIC-RELAXATION, HELICAL POLYACETYLENE, CARBON NANOTUBES, AC-CONDUCTIVITY, STACKING
  • Ankara Üniversitesi Adresli: Hayır

Özet

The electrical and dielectric properties of the nematic liquid crystal (E63) and Nickel Phthalocyanine (NiPc) doped E63 composite have been investigated by dielectric spectroscopy under 0-0.4T magnetic field. It has been observed that NiPc doping and external magnetic field, B decrease threshold voltage. Moreover, conductivity of the composite has an increasing tendency with magnetic field. Furthermore, a significant decrease in relaxation frequency with B has been interpreted as the simplification of molecular orientation. Hence, NiPc doping enhances the magnetic sensitivity of E63 and increases molecular orientation ability and conductivity.