Joint Application of Transport Level and Effective Temperature Concepts for an Analytic Description of the Quasi- and Nonequilibrium Charge Transport in Disordered Organics

An analytic model based on the transport level and effective temperature concepts has been developed to describe consistently both the quasi- and nonequilibrium transport regimes in nonpolar organic solids with the Gaussian uncorrelated energetic disorder. Field and temperature dependences of drift mobility on the nonequilibrium transport regime relating to the time-of-flight experiment are in good agreement with the Monte-Carlo simulation results in a broad range of fields and temperatures using the same set of model parameters for both transport regimes.