Analysis of the carrier transport in molecularly doped polymers using the multiple trapping model with the Gaussian trap distribution
We have performed the comprehensive analysis of the time of flight curves using the multiple trapping model with the Gaussian trap distribution. Our analysis shows that flat plateaus on the computed curves are rare events. We have shown numerically that plateau formation for the non-equilibrium transport may be due to the presence of a thin defective (depletion) layer on the sample surface (two-layer model of a polymer film). Also, to escribe the Poole–Frenkel effect, we have explicitly introduced an analogous field dependence for the frequency factor.