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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 49: Poster Session II

CPP 49.12: Poster

Dienstag, 17. März 2020, 14:00–16:00, P1A

In-situ GISAXS and GIWAXS measurements during slot-die printing of perovskite thin-films — •Manuel A. Scheel¹, Lennart K. Reb¹, Renjun Guo¹, Sebastian Grott¹, Volker Körstgens¹, Wei Chen¹, Nian Li¹, Matthias Schwartzkopf², Stephan V. Roth^2,3, and Peter Müller-Buschbaum¹ — ¹Technische Universität München, Physik Departement, Lehrstuhl für Funktionelle Materialien, James-Franck-Str. 1, 85748 Garching, Germany — ²DESY, Notkestr. 85, 22607 Hamburg — ³KTH, Department of Fibre and Polymer Technology, SE-100 44 Stockholm, Sweden

Organic-inorganic metal halide perovskite based solar cells (PSCs) are currently intensely researched for their potential as cheap and highly efficient next generation solar cells applicable for industrial scale production. In principle, industrial requirements can be met by roll-to-roll slot-die coating. Highly crystalline and uniform films with low defect concentrations are paramount in reaching high power conversion efficiencies in PSCs. In order to better understand morphology evolution and crystallization kinetics during printing deposition in-situ GISAXS and in-situ GIWAXS measurements were done on methyl ammonium lead iodide (MAPI) thin films also covering the wet film stage during the printing process. Printing was carried out at ambient conditions with a self-built slot-die coater equipped with a meniscus guiding blade and temperature controlled sample stage on glass/ITO/PEDOT:PSS.