Regensburg 2016 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 47: Poster: Interfaces and Thin Films

CPP 47.5: Poster

Mittwoch, 9. März 2016, 18:15–21:00, Poster B2

Degradation in printed polymer:fullerene thin films for organic photovoltaics — •Jan Richard Stockhausen, Christoph J. Schaffer, and Peter Müller-Buschbaum — TU München, Physik-Department, James Franck-Str. 1, 85748 Garching

In comparison to conventional silicon solar cells, organic solar cells offer several advantages, such as ease of production in large-scale and high versatility. Nevertheless, their lifetime needs to be prolonged, so that a profitable application on a large-scale becomes feasible. Therefore a detailed understanding of all degradation mechanisms is necessary. In the present investigation we address UV and visible light induced aging of P3HT:PCBM active layers. Instead of spin coating, positive shim mask guided slot dye coating is used for film fabrication as large-scale production will most probably rely on printing techniques. Therefore several irradiation chambers are built to expose the films to radiation of different wavelengths. Changes in the films due to accelerated aging are investigated by means of AFM, X-ray reflectivity and UV/Visible light spectroscopy.