Berlin 2012 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

HL: Fachverband Halbleiterphysik

HL 72: Poster Session: Si-based Photovoltaics / Inorganic Photovoltaics / Structure and Transport in Organic Photovoltaics / Organic Semiconductors

HL 72.17: Poster

Wednesday, March 28, 2012, 16:00–19:00, Poster D

Theoretical investigation of the charge transport in nanostructured organic semiconductors — •Anton Pershin, Sergii Donets, and Stephan A. Baeurle — Institut für Physikalische und Theoretische Chemie, Universität Regensburg, D-93040 Regensburg, Germany

Charge transport in organic semiconductors is strongly affected by small-scale loss phenomena, like exciton and charge carrier loss, which reduces the usefulness of such materials for industrial applications. In this presentation we introduce a new simulation approach, which permits to explore the causes for the occurrence of such phenomena on the nanoscale, and provide in this way a new tool for the optimization of charge transport in photovoltaic systems. Our approach models the elementary photovoltaic processes by coupling a mesoscopic simulation technique for reproducing the polymeric phase separation process with a suitable stochastic dynamical algorithm for simulating the charge transport process [1]. Using this method, we study the influence of the composition and timely variable structural factors, like e.g. inhomogeneities, on the efficiency of exciton and charge carrier generation as well as transport in nanostructured polymer systems.

[1] A. Pershin, S. Donets, S.A. Baeurle, submitted.