AC Conductivity of Cobalt Phthalocyanine
T.G. Abdel-Malika, M.E. Kassemb, N.S. Alyc and S.M. Khalilb
aPhysics Department, Faculty of Science, El-Minia University, Egypt
bDepartment of Physics, Faculty of Science, Alexandria University, Egypt
cDepartment of Physics, Faculty of Education, Alexandria University, Egypt
Received: January 6, 1992; revised version: April 3, 1992
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The dielectric properties of cobalt phthalocyanine are investigated in the frequency range 50-5×105 Hz and within the temperature range 293-363 K. The frequency dependence of the AC impedance could be expressed by the complex plane of the complex impedance. Analysis of the AC conductivity reveals semiconducting features based predominantly on the hopping mechanism. The relaxation time, derived from the experimental results, shows a thermally activated process.
DOI: 10.12693/APhysPolA.81.675
PACS numbers: 77.40.+i