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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 59: Crystallization
CPP 59.3: Vortrag
Freitag, 13. März 2026, 12:00–12:15, ZEU/0260
In-situ structure and morphology investigations of slot-die coated perovskite nanocrystal films — •Thomas Baier1, Altantulga Buyan-Arivjikh1, Lixing Li1, Xiaojing Ci1, Markus Döblinger2, Matthias Schwartzkopf3, Thomas Bein2, Sarathlal Koyiloth Vayalil3,4, and Peter Müller-Buschbaum1 — 1TUM School of Natural Sciences, Chair for Functional Materials, Garching, Germany — 2Department of Chemistry, LMU, Munich — 3DESY, Hamburg — 4UPES, Dehradun
Colloidal perovskite nanocrystals (PNCs) are promising in contributing to next-generation optoelectronic and energy conversion technologies. In this work, mixed-cation cesium-formamidinium lead-iodide (Cs(1-x)FAxPbI3) PNCs were synthesized via a colloidal hot-injection route and subsequently processed into thin-film active layers using slot-die coating for scalable manufacturing. The evolution of structural order during deposition was probed in-situ using grazing-incidence small- and wide-angle X-ray scattering (GISAXS and GIWAXS), providing direct insights into nanocrystal packing, ordering, and defect formation. Simultaneous optical characterization via photoluminescence (PL) provided complementary information on the evolution of optical properties during deposition, while transmission electron microscopy (TEM) enabled correlation with nanoscale information. By combining colloidal synthesis, in-situ structural probes, and optical characterization, this work directly links nanoscale assembly, defect states, and the optoelectronic performance of perovskite nanocrystal thin films.
Keywords: perovskite; nanocrystal; in-situ; GIWAXS; thin-film