AC CONDUCTIVITY OF CoFe2O4 NANOPARTICLES SYNTHESIZED BY POLYOL METHOD

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Yilmaz E., Gurkaynak T., Deligoz H., Deger D., Ulutas K., Yakut Ş.

IEEE NANO 2015 15th INTERNATIONAL CONFERENCE ON NANOTECHNOLOGY, Rome, İtalya, 27 - 30 Temmuz 2015, ss.271-273 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası:
  • Doi Numarası: 10.1109/nano.2015.7388975
  • Basıldığı Şehir: Rome
  • Basıldığı Ülke: İtalya
  • Sayfa Sayıları: ss.271-273
  • İstanbul Üniversitesi Adresli: Evet

Özet

Cobalt Ferrite (CoFe2O4) nanoparticles coated with oleic acid were synthesized by polyol method. The structures of the nanoparticles were characterized by X-Ray Diffraction (XRD), Fourier Transform Infrared with Attenuated Total Reflectance Unit (FTIR -ATR). Thermal and morphological properties of nanoparticles were determined by thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and transmitting electron microscopy (TEM) respectively. The dielectric constant and dielectric loss of the nanoparticles were determined in the frequency range of 10 Hz-20 MHz and within the temperature range of 293 K-423 K. It was observed that AC conductivity sigma(omega) alpha omega(s) (0< s< 1).