Berlin 2018 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 46: Poster Session IV

CPP 46.29: Poster

Mittwoch, 14. März 2018, 11:00–13:00, Poster A

Printed fullerene free organic thin films films for photovoltaic applications — •Rodrigo Delgado, Sebastian Grott, and Peter MüllerBuschbaum — TU München, Physik-Department, LS Funktionelle Materialien, 85748 Garching

During the past decade, organic photovoltaics (OPVs) have attracted considerable attention owing to their outstanding characteristics, such as potential low-cost fabrication, high throughput, light weight, flexibility and easy processability. Fabrication techniques for these OPVs devices vary depending on the materials used, and include vaccum evaporation, spin-coating, inkjet printing, doctor-blading, spray casting, screen printing and roll-to-roll printing. Among these, the scalability of the printing processes makes them attractive for industrial application. In this study, the influence of different ratios of donor:acceptor PBDB-T:ITIC for thin film bulk heterojunction (BHJ) OPVs deposited by printing methods are explored. In order to characterize these solar cells their current-voltage characteristics as well as their absorbance spectra are measured. Additionally, the inner morphology of the active layers is probed with advanced scattering techniques, to correlate structure information with the obtained photoelectrical properties of the devices.