Regensburg 2025 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 11: Hybrid and Perovskite Photovoltaics II
CPP 11.1: Vortrag
Montag, 17. März 2025, 16:15–16:30, H38
Structure and morphology investigations on slot-die coated perovskite nanocrystal films — •Thomas Baier1, Altantulga Buyan-Arivjikh1, Lixing Li1, Xiaojing Ci1, Matthias Schwartzkopf2, Sarathlal Koyiloth Vayalil2, 3, and Peter Müller-Buschbaum1 — 1TUM School of Natural Sciences, Chair for Functional Materials, 85748 Garching, Germany — 2Deutsches Elektronen-Synchrotron DESY, 22607 Hamburg, Germany — 3Applied Sciences Cluster, University of Petroleum and Engergy Studies UPES, Dehradun, Uttarakhand 248007, India
Perovskite quantum nanocrystals hold great potential for contributing to the future renewable energy mix by serving as the active layer in solar cells. This potential arises from quantum confinement effects, which occur when crystal sizes are reduced below the Bohr radius. These nanocrystals achieve high power conversion efficiencies, excellent photoluminescence quantum yield (PLQY), narrow photoluminescence (PL) peaks, and enhanced stability compared to bulk perovskite. Additionally, the choice of X halides (I-, Br-, Cl-) and A-site cations (FA+, MA+, Cs+) within the ABX3 perovskite structure allows precise bandgap tuning. Cesium-formamidinium lead iodide perovskite nanocrystals have been prepared and slot-die coated. These perovskite nanocrystals as active layers are investigated using in-situ grazing incidence small- & wide-angle x-ray scattering (GISAXS & GIWAXS) to better understand the layers formation process.
Keywords: Perovskite; Nanocrystal; GIWAXS; in-situ; slot-die coating