Determination of phase transition from nematic to isotropic state in carbon nano-balls' doped nematic liquid crystals by electrical conductivity-dielectric measurements


OKUTAN M., San S. E., BASARAN E., YAKUPHANOGLU F.

PHYSICS LETTERS A, cilt.339, sa.6, ss.461-465, 2005 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 339 Sayı: 6
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1016/j.physleta.2005.04.009
  • Dergi Adı: PHYSICS LETTERS A
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.461-465
  • Anahtar Kelimeler: liquid crystal, conductivity, dielectric, phase transition, NANOTUBES, GRATINGS
  • Kocaeli Üniversitesi Adresli: Hayır

Özet

The phase transition in carbon nano-balls' doped nematic liquid crystals has been investigated by electrical conductivity-dielectric measurements. The results of electrical conductivity and dielectric constant as a function temperature and frequency indicate that a phase transition, which is of the first order, takes place from nematic state and isotropic state. The phase transition for E7 and E7/C60 samples takes place at 326 and 321 K temperatures, respectively. (c) 2005 Elsevier B.V. All rights reserved.