Regensburg 2025 – scientific programme
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HL: Fachverband Halbleiterphysik
HL 29: Poster II
HL 29.76: Poster
Tuesday, March 18, 2025, 18:00–20:00, P1
Statistical spectroscopy of perovskite quantum dots — •Christopher Borchers1, Frederik Benthin1, Tom Rakow1, Pengji Li1, Maximilian Heller1, Chenglian Zhu2,3, Ihor Cherniukh2,3, Gabriele Rainò2,3, Maksym Kovalenko2,3, Michael Zopf1,4, and Fei Ding1,4 — 1Leibniz Universität Hannover, Institut für Festkörperphysik, Appelstraße 2, 30167 Hannover — 2Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland — 3Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland — 4Laboratory of Nano and Quantum Engineering, Leibniz University Hannover, Schneiderberg 39, D-30167 Hannover, Germany
The ability to perform fast and automated photoluminescence (PL) spectroscopy measurements greatly improves the efficient development of quantum light emitters and their optimization in quantum technologies.
We adopt and semi-automate standard low temperature optical characterization measurements for lead halide perovskite colloidal quantum dots. Here, PL spectroscopy on CsPbBr3 samples is used to characterize the emission spectrum, polarization properties, and fine structure, and to perform corresponding automated statistical analyses of these measurements. For these analyses, we have developed a program that processes PL spectral data, automatically detecting and fitting emission peaks for subsequent evaluation.
Keywords: Perovskite; Spectroscopy; Automization; Statistics; Colloidal