2017 Cilt 22 Sayı 3

Permanent URI for this collectionhttps://hdl.handle.net/11452/12075

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Browsing by Subject "Ac conductivity"

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    Impedance spectroscopy and dielectric relaxation in phthalocyanine thin film
    (Uludağ Üniversitesi, 2017-10-16) Can, Nursel; Altındal, Ahmet
    Dielectric relaxation behavior of spin coated thin film of novel ball-type binuclear zinc(II) phthalocyanine were studied using impedance spectroscopy technique over a frequency range of 5– 13x106 Hz and temperatures (298 – 468 K). Simulation of the obtained impedance data indicated that the dielectric behaviour of the system can be modeled by a parallel RC electrical equivalent circuit. A frequency dependence in the form of ω m , where the index m is found strongly temperature dependent, was observed for the ac conductivity σac. Ac conductivity data were analyzed in terms two different models. The observed temperature dependence of the m indicate that the ac charge transport in Pc film take place via hopping process.