Regensburg 2025 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 15: Poster Session I

CPP 15.35: Poster

Montag, 17. März 2025, 19:00–21:00, P4

Ternary Organic Solar Cells For Space Applications — •Ivonne A. Zitzmann, Lukas V. Spanier, and Peter Müller-Buschbaum — TUM School of Natural Sciences, Chair for Functional Materials, 85748 Garching, Germany

It has been demonstrated that organic solar cells (OSC) are capable of achieving high gravimetric power density, making them suitable for space applications. However, they still exhibit insufficient long-term stability, and there are few studies on their performance under space-like conditions. Here we investigate the ternary OSC system PBDB-T-2F:BTP-eC9:PC₇₁BM by optimizing its efficiency and studying its structure and degradation by optical measurements and grazing incidence wide and small angle X-ray scattering. Space conditions were simulated with AM0 illumination. Further, the OSCs were exposed to temperature cycling to assess their stability in a space environment, subject to rapidly changing temperatures. In addition, data from a suborbital rocket flight was examined for performance and degradation of the solar cells. These results may allow for the furthering of our understanding of photovoltaic power generation in harsh environments.

Keywords: Organic Solar Cells