Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
CPP: Fachverband Chemische Physik und Polymerphysik
CPP 17: Poster Session I
CPP 17.44: Poster
Montag, 27. März 2023, 18:00–20:00, P3
In-situ observation of growth mechanisms during printing of 2D perovskite films — •Kun Sun1, Renjun Guo1, Linus F. Huber1, Manuel A. Reus1, Jungui Zhou1, Matthias Schwartzkopf2, Stephan V. Roth2,3, and Peter Müller-Buschbaum1,4 — 1TUM School of Natural Sciences, Chair for Functional Materials, 85748 Garching, Germany — 2DESY, 22607 Hamburg, Germany — 3Department of Fiber and Polymer Technology, KTH, SE-100 44 Stockholm, Sweden — 4MLZ, TUM, 85748 Garching, Germany
Two-dimensional (2D) metal halide perovskites have emerged as a promising candidate for perovskite solar cells (PSCs) due to their remarkable stability compared with their 3D counterparts. However, solution-based spin-coating as fabrication method is not adequate in terms of upscaling. In this regard, the slot-die coating technique, having minimal expenditure and low costs, is a well suitable upscaling method to speed up the commercialization of PSCs. Nevertheless, a fundamental understanding of the film formation during printing is yet not well understood, which causes printed solar cells to stay behind in device efficiencies. Here, we investigate the nucleation and growth of 2D perovskite films during slot-die coating with in-situ grazing incidence wide angle X-ray scattering (GIWAXS) in combination with photoluminescence (PL) during printing. In addition, the crystallite orientation and phase distribution of 2D perovskite containing different dimensionality are well elucidated.