Abstract

The multiple-trapping model with a Gaussian trap distribution was used for the numerical analysis of the effects of nonequilibrium transport on the temperature dependence and field dependence of the mobility of carriers in a typical molecularly doped polymer. It was shown that, with allowance for the prescribed Poole-Frenkel-type field dependence of mobility under the conditions of nonequilibrium transport, the observed decrease in the effective energy of disorder may be explained as a compensation effect with no change in the initial energy distribution of hopping centers.

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