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The dark conduction current in 100 μm thick pure and anthracene doped bimetallized poly(methyl methacrylate) (PMMA) foils was measured at temperatures ranging from 333 to 383 K and filds ranging from 8 to 50 kV/cm. An attempt was made to identify the nature of the current by comparing its observed dependence on electric field, temperature and dopant concentration with the respective characteristic features of the existing theories of electrical conduction. The observed characteristics suggest that the charge carriers are generated by field assisted lowering of coulombic barriers at the traps and are conducted through the bulk of the material by a hopping process between the localized states by a Jonscher–Ansari modified Poole–Frenkel mechanism. The high value of the activation energy is considered to indicate the possibility of charge carrier species inside the polymer bulk being ionic in nature.

The charge storage and transport behaviour of 100 /spl mu/m thick pure and 0.1 wt% anthracene doped poly(methyl methacrylate) (PMMA) foils has been investigated by absorption current, isothermal surface charge decay and thermally stimulated discharge current (TSDC) measurement techniques over a temperature range of 298 to 393 K, with fields ranging from 8 to 50 kV/cm.

The charge storage and transport behaviour of bimetallized, 100 /spl mu/m thick, pure and anthracene doped poly methyl methacrylate (PMMA) foils has been studied by investigating dark conduction currents, transient absorption currents and thermally stimulated depolarization (TSD) over a wide temperature range of 298 to 393 K, with fields ranging from 8 to 50 kV/cm.