Berlin 2008 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 36: Poster III

HL 36.11: Poster

Mittwoch, 27. Februar 2008, 16:30–19:00, Poster D

Monte Carlo simulated charge carrier transport in disordered semiconducting organic devices — •Jens Lorrmann¹, Carsten Deibel¹, and Vladimir Dyakonov^1,2 — ¹Experimental Physics VI, Physical Institute, Julius-Maximilians University of Würzburg, Am Hubland, D-97074 Würzburg — ²ZAE Bayern, Div. Functional Materials for Energy Technology, Am Hubland, D–97074 Würzburg

The charge carrier transport in disordered organic semiconductors plays an important role in understanding and optimizing the behavior of organic electronic devices. It can be described as thermally activated hopping in a gaussian distribution of localized states and is characterized by the charge carrier mobility. In order to investigate this hopping, kinetic Monte Carlo simulations are very helpful, as they allow to gain insight into charge carrier transport properties in such complex systems.
A Monte Carlo program to simulate the charge carrier mobility in disordered organic semiconductors was implemented, taking into consideration the Coulomb interaction. We discuss the influence of charge carrier density, energetic disorder as well as Coulomb repulsion on the mobility.