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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 15: Poster Session I

CPP 15.36: Poster

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

Degradation of Printed Organic Solar Cells at High Temperatures — •Christoph G. Lindenmeir¹, Simon A. Wegener¹, Christopher R. Everett¹, Julian E. Heger¹, Sigrid Bernstroff², and Peter Müller-Buschbaum¹ — ¹TUM School of Natural Sciences, Chair for Functional Materials, 85748 Garching, Germany — ²Elettra, 34149 Basovizza, Trieste, Italy

Organic solar cells (OSCs) have gained significant attention recently due to their non-toxicity, short energy payback times, and fast efficiency improvements. Their high absorbance, potentially flexible design, and easy solution-based manufacturing make them particularly promising. Especially slot-die printing, a fast and low-waste fabrication method, enhances their scalability and potential for various applications, including space use. OSCs are particularly suited for space as their thin, lightweight structure provides a higher power-to-weight ratio than traditionally used solar cells, lowering production and launch costs. However, space conditions like extreme temperatures, high vacuum, and radiation accelerate degradation. This study focuses on the impact of extreme temperature variations on printed OSCs. We optimized their printing process and analyzed their degradation using operando grazing incidence small-angle X-ray scattering (GISAXS), a nondestructive method for studying thin-film morphology. Additionally, we monitored their electrical performance under high vacuum to simulate space conditions.

Keywords: Organic Solar Cells; Photovoltaics; Printing