Berlin 2008 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 36: Poster III

HL 36.14: Poster

Wednesday, February 27, 2008, 16:30–19:00, Poster D

Numerical simulation of organic bulk heterojunction solar cells — •Alexander Wagenpfahl¹, Carsten Deibel¹, Andreas Baumann¹, and Vladimir Dyakonov^1,2 — ¹Experimental Physics VI, Julius-Maximilians-University of Würzburg, Am Hubland, D–97074 Würzburg — ²The Bavarian Center for Applied Energy Research (ZAE Bayern), Am Hubland, D–97074 Würzburg

By implementing a numerical solver for differential equations, we are able to calculate the current–voltage characteristics of organic bulk heterojunction solar cells. Under illumination, Fermilevel splitting can be observed. By considering different models for polaron dissociation in the active layer as well as charge carrier injection at the interfaces, we are able to compare our simulations to experimental data. In particular, we will discuss the influence of illumination on the solar cell characteristics.