Abstract
Using published data for four molecularly doped polymers, which exhibit flat plateaus onthe time-of-flight transients, we compared theoretical curves with experimental ones. Thenumerical calculations as well as parameter values were based on the Gaussian disordermodel. In no case were flat plateaus predicted to appear. According to theory carriertransit should proceed in the non-equilibrium regime. We saw close agreement for thetransit times in weakly polar polymers even at high fields but only at elevatedtemperatures, while in highly polar polymers similar agreement occurred only at low fields.In addition, the Gaussian disorder model does not account for the current shapeuniversality (regarding field variation) frequently observed experimentally in polarmolecularly doped polymers.
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