AC conductivity and dielectric properties of Co-doped TiO2

Okutan M., Basaran E., Bakan H. İ., Yakuphanoglu F.

PHYSICA B-CONDENSED MATTER, cilt.364, ss.300-305, 2005 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 364
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1016/j.physb.2005.04.027
  • Dergi Adı: PHYSICA B-CONDENSED MATTER
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.300-305
  • Kocaeli Üniversitesi Adresli: Evet

Özet

The alternating current (AC) conductivity and dielectric properties of the Co-doped TiO2, were investigated. The temperature dependence of AC conductivity and the parameter s, is reasonably well interpreted by the correlated barrier hopping (CBH) model. The activation energy (E), and the density of states at Fermi level, N(E-1) were determined. The dielectric constant decreases with frequency at low frequencies and increases at high frequencies. (c) 2005 Elsevier B.V. All rights reserved.