RADIATION-INDUCED DIELECTRIC EFFECT IN POLYMERS

Radiation-induced conductivity (RIG) for alternating current (AC) flow ing due both to free-charge transfer and geminate-pair polarization is analyzed theoretically. The results indicate that at values of the go verning parameters characteristic of the polymers studied AC RIC excee ds DC RIC only by a few percent. Whereas, according to the experimenta l data, the former value exceeds the latter several-fold. A plausible outcome from this contradiction is to take into account in more detail the fact that charge carriers are transferred via the tunnelling mech anism.