Abstract
In order to investigate the effect of gamma irradiation on the conductivity of polypyrrole, dc and ac conductivity measurements were carried out by four-probe technique as a function of temperature and by using Hall system at room temperature, respectively. Both ac and dc conductivities were found to exhibit a maximum at 1.80 kGy dose value. The dc conductivity of irradiated polypyrrole films was found to vary exponentially with (T) −1 at high temperature, while (T) −1/4 dependence was observed at low temperature range.
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