Abstract

We argue that our theory describes more adequately charge transport in the presence of traps, since it accounts for the effects of disorder. The results of the calculation are found to be in good agreement with both experimental data and computer simulations. Our calculations support a notion that the effect of traps can be quantitatively accounted for by the introduction of an effective disorder parameter. Also, it is found that both the relaxation of the ensemble of majority charge carriers within the combined intrinsic and the extrinsic density-of-states distribution and the occurrence of trap-to-trap migration alter the temperature dependence of the charge mobility significantly, notably at lower temperature.

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