Reversal of the usual electric field effect on the nomadic polarization in polymeric solids

Abstract

Microwave measurements at 9.9 GHz on polyacene quinone radical copolymers are reported, which confirm the prediction previously presented in the literature, that at a sufficiently high frequency, the usual DC or low-frequency electric field effect observed for materials exhibiting electronic nomadic polarizability will reverse to give an increasing permittivity with increasing field strength. Microwave measurements of this effect will be of use for other organic conducting materials, especially those of possible biological interest.