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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 30: Poster: Organic Electronics and Photovoltaics
CPP 30.14: Poster
Tuesday, March 8, 2016, 18:15–21:00, Poster B2
Investigating the photoactive layer morphology of printed thin films for organic solar cells — •Oliver Filonik1,2, Stephan Pröller1, Peter Müller-Buschbaum3, and Eva M. Herzig1 — 1Technische Universität München, Munich School of Engineering, 85748 Garching, Germany — 2Technische Universität München, LS Erneuerbare und Nachhaltige Energiesysteme, 85748 Garching, Germany — 3TU München, Physik-Department, LS Funktionelle Materialien, 85748 Garching, Germany
Organic solar cells yield numerous advantages including flexibility, low material costs, and independence on rare resources. In particular, solution based processability enables fabrication techniques like printing, which is up-scalable to large area photovoltaics production in industrial processes. The photoactive layer morphology, consisting of a donor and acceptor material blend, is of utmost importance for the performance of the device due to its impact on the exciton generation, exciton separation and charge carrier transport in the device. Therefore, a deeper understanding of the parameters influencing the active layer's morphology is crucial.
Using a slot die coater, we print organic thin films used as the photoactive layer of an organic solar cell. We investigate the processing parameters as well as external influences on the film morphology in order to obtain insight into the crucial processing parameters for the photoactive layer. With this knowledge, we are able to optimize the production process of organic solar cells.