Characterization of Organic Solar Cells: the Importance of Device Layout


  • We thank Dr. T. Fromherz, Prof. D. Meissner, and Prof. N. S. Sariciftci for valuable discussions, and Prof. R. A. J. Janssen and coworkers for providing OPV1–C60.


Easily adjustable parameters such as area and design can affect the determination of the efficiency of donor–acceptor organic solar cells. Devices with crossing electrodes and unpatterned (semi)conducting organic layers can collect a non-negligible current from regions usually not considered as part of the photovoltaic element, a fact that might lead to an overestimation of the power conversion efficiency.