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Regensburg 2022 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 12: Poster 1

CPP 12.48: Poster

Monday, September 5, 2022, 18:00–20:00, P1

In situ study of supperlattice self-assembly during printing of perovskite quantum dot films for solar cell applications — •David P. Kosbahn1, Manuel A. Reus1, and Peter Müller-Buschbaum1,21TU München, Physik-Department, LS Funktionelle Materialien, 85748 Garching — 2MLZ, TU München, 85748 Garching

Research into quantum dots (QDs) of lead halide perovskites (LHPs) has become increasingly popular due to their stability and tunable optoelectronic properties. Their controllable surface chemistry and simple preparation make them a promising alternative to bulk perovskite solar cells. The power conversion efficiency (PCE) of CsxFA1−xPbI3 QD solar cells (QDSCs) has been steadily rising, up to a recent record efficiency surpassing 16%. However, the orientation and self-assembly of the colloidal precursor into a superstructure is not yet well-understood. In this work, we study the formation of perovskite QD films using in situ grazing-incidence wide-angle X-ray scattering (GIWAXS) in real time, to achieve a better understanding of the kinetics involved in their fabrication.

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