Berlin 2018 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 23: Organic Photovoltaics I

CPP 23.9: Vortrag

Dienstag, 13. März 2018, 12:00–12:15, C 243

Recombination in Organic Solar Cells: Are There Still Lessons to Learn from P3HT:PCBM? — •Sebastian Wilken, Dorothea Scheunemann, and Jürgen Parisi — Institute of Physics, University of Oldenburg, Germany

The nature of the non-geminate recombination in organic bulk heterojunction solar cells remains controversial. In this talk, we present new data on an old hat: P3HT:PCBM. By tailoring the nanoscale morphology, we observed a novel kind of structure–property relationship in P3HT:PCBM devices that is at variance with current theoretical models. We discuss whether these findings provide new avenues for understanding the role of phase separation and interface states in the non-geminate recombination dynamics.