August 30, 2021 to September 3, 2021
University of Innsbruck
Europe/Zurich timezone

【134】Colloidal Supercrystal Growth studied in-situ by X-ray Scattering

Sep 1, 2021, 5:45 PM
Room A

Room A

Talk Condensed Matter Physics (KOND) Condensed Matter Physics


Dr Rainer Lechner (Montanuniversitaet Leoben)


When colloidal nanocrystals self assemble into ordered superstructures they form functional solids that inherit the electronical properties of the single nanocrystals (NCs). To what extent these properties are enhanced depends on the specific ordering of the NCs within the superstructure.
Here, the formation of supercrystals using faceted nanocrystals as building blocks was investigated by in-situ small angle x-ray scattering (SAXS) at lab and synchrotron (ELETTRA) sources. As building blocks we used magnetic FeO-nanocubes and -nanostares as well as facted semiconducting PbTe/PbS nanocrystals. Additionally, we determined the atomic crystal structure (with XRD/WAXS) of the NCs within the supercrystals and demonstrated the connection between crystal structure and superstructure via the NCs' shape.

Primary author

Dr Rainer Lechner (Montanuniversitaet Leoben)


Ms Maria Reitgruber (Montanuniversitaet Leoben, Institute of Physics) Mr Maximilian Ritter (ETH Zurich, Institute for Building Materials) Dr Artur Feld (Universität Hamburg, Institut für Physikalische Chemie - CUI) Dr Weimer Agnes (Universität Hamburg, Fachbereich Chemie, Institut für Physikalische Chemie) Mr Sergi Sànchez Ribot (IST Austria) Prof. Maria Ibanez (IST Austria)

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