SKM 2021 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 13: Molecular Electronics, Hybrid and Perovskite Photovoltaics

CPP 13.3: Vortrag

Freitag, 1. Oktober 2021, 10:45–11:00, H3

In situ GIWAXS phase and texture tracking of 2-step slot-die coated perovskite — •Manuel Andree Scheel1, Lennart Klaus Reb1, Renjun Guo1, Matthias Schwartzkopf2, Stephan Volkher Roth2,3, and Peter Müller-Buschbaum1,41Lehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany — 2DESY, 22607 Hamburg, Germany — 3KTH, Department of Fibre and Polymer Technology, SE-100 44 Stockholm, Sweden — 4Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstr. 1, 85748 Garching, Germany

Perovskite slot-die coating is a promising thin-film deposition technique for organic-inorganic perovskite materials and might lead the way towards commercial high efficient solar cells. Roll-to-roll compatible deposition techniques offer the possibility to combine high production throughput with minimal waste, and offer high customizability at the same time. We investigate the conversion of slot-die coated lead iodide and slot-die coated methylammonium iodide to perovskite by in situ grazing-incidence wide-angle X-ray scattering (GIWAXS). Here, we study the thin-film morphology and texture of the resulting thin film during the annealing process. We track the phase evolution and their respective crystal orientations over time. We find, that the precursor-solvent phase influences the final crystal orientation in the thin-film by acting as a precursor source that controls the level of available precursor material. We also investigate deposition-technique depending differences that can influence thin-film characteristics.

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