DC, AC and noise simulation of organic semiconductor devices based on the master equation

Abstract

The hopping transport in organic semiconductors produces characteristic frequency dependencies of the admittance and noise, which are calculated in this paper for the first time based on the master equation approach, where noise is evaluated by the Langevin approach and a modified Ramo-Shockley theorem. At low frequencies and low injection the non-equilibrium noise is found to be shot noise in the framework of this model.