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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 5: Poster Session I

CPP 5.8: Poster

Dienstag, 28. September 2021, 17:30–19:30, P

Upscaling Perovskite: Optoelectronics and Morphology of Slot-Die Coated Solar cells — •Andrea Vitaloni¹, Lennart K. Reb¹, and Peter Müller-Buschbaum^{1, 2} — ¹Technische Universität München, Physik-Department, Lehrstuhl für Funktionelle Materialien, James-Franck-Str. 1, 85748 Garching, Germany — ²Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstr. 1, 85748 Garching, Germany

Perovskite solar cells (PSCs) have attracted increasing attention in research and industry due to their high efficiency, low material cost, and simple solution-based fabrication process. Additionally, the possibility to fabricate flexible and thin solar cells creates new opportunities compared to traditional solar modules.

In laboratory devices, the efficiency already exceeds 25% and is comparable with c-Si. However, one of the most important steps towards commercialization is the upscaling of the PSCs production to larger areas. Slot-die coating is considered to be one of the most promising technology, being a fast process with minimum material consumption and waste. Furthermore, the highly tuneable perovskite ink composition strongly determines kinetic processes during film formation and the final morphology.

We vary the composition of MAPI inks and analyze the printed perovskite thin-films and derived solar cells with spectroscopic and X-ray scattering methods. The focus is on developing a comprehensive understanding of the slot-die coating process for printed, flexible, and high-efficiency PSCs.