Nanomeghyas

Nanomeghyas

Influence of Temperature and Frequency on Electrical Properties Nanocomposite Chloroindium Phthalocyanine-Polypyrrole

Authors
M. E. Azim Araghi
S. Mahmoudi
Abstract
In this research work, the AC electrical properties of nanocomposite chloroindium phthalocyanine-polypyrrole were studied. Nanocomposites (ClInPc+%5 PPy) & (ClInPc+%15 PPy) & (ClInPc+%25 PPy) were synthesized and Subsequently sandwich devices (Al/ClInPc+PPy/Al) were prepared on pre-cleaned glass substrates, which were deposited in a high vacuum device of the electron-beam gun in the pressure of 10-5 mbar. Capacitance and Dissipation factor were measured in the range of 102-105 Hz frequency and 307-383 K temperatures. the capacitance and loss factor reduced by increasing the frequency and enhanced by increasing the temperatures. The AC electrical properties thin films of our materials are in good agreement with Goswami and Goswami model. The dependence of the electrical conductivity on the frequency is analyzed by the equation σ(ω) = AωS which is typical for charge transport. The dominance of each mechanism depends on the experimental conditions and the temperature and frequency intervals. In this present research, the conduction mechanism is specified with hopping models. furthermore, the activation energies of the device are achieved as a function of frequency. The surface morphology of the nanocomposite thin film was investigated by field emission scanning electron microscope (FESEM) images.
Keywords
AC conductivity
Phthalocyanine
Polypyrrole
The conduction mechanism
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  • Receive Date 01 November 2020