Dr. Stefan Kowarik

Profil

Zusammenfassung

Dr. Stefan Kowarik erforscht das Wachstum und die Struktur von dünnen organischen Schichten und Molekülfilmen mittels oberflächenempfindlicher Röntgenstreuung und in-situ-Messungen. Seine Expertise liegt darin, Wachstumsprozesse in Echtzeit zu beobachten und zu verstehen, wie Moleküle sich auf Oberflächen anordnen — Wissen, das für die Entwicklung von organischen Halbleitern, Sensoren und funktionalen Oberflächenbeschichtungen unmittelbar nutzbar ist.

Skills

Name

Dr. Stefan Kowarik

Titel

Dr.

Fakultät

Mathematisch-Naturwissenschaftliche Fakultät

Institut

Institut für Physik

Arbeitsgruppe

Experimentelle Quantensimulation und Quantencomputing

E-Mail

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Telefon

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HU-FIS-Profil

Quelle ↗

Zuletzt gescrapt

28.6.2026, 01:08:25

• SFB 658/3: Struktur, exzitonische Koplung und kooperative Dynamik von Schaltern auf Oberflächen (TP B 10)

  Quelle ↗

  Förderer: DFG Sonderforschungsbereich Zeitraum: 07/2013 - 06/2017 Projektleitung: Dr. Stefan Kowarik

• SFB 951/1: HIOS - Monitoring HIOS growth: in-situ and real-time X-ray scattering (TP A 9)

  Quelle ↗

  Förderer: DFG Sonderforschungsbereich Zeitraum: 07/2011 - 06/2015 Projektleitung: Dr. Stefan Kowarik

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• Step-by-Step Route for the Synthesis of Metal−Organic Frameworks

  2007

  Journal of the American Chemical Society · 898 Zitationen · DOI

  Using a novel layer-by-layer approach we have deposited metal−organic open frameworks (MOFs) based on benzenetricarboxylic acid ligands and Cu(II)-ions on a COOH-terminated organic surface. The deposited layers were characterized using a number of surface analysis techniques. XRD measurements show that the MOFs deposited using this method have the same bulk structure of HKUST-1.

• Biomolecular Recognition Based on Single Gold Nanoparticle Light Scattering

  2003

  Nano Letters · 708 Zitationen · DOI

  A method for biomolecular recognition is reported using light scattering of a single gold nanoparticle functionalized with biotin. Addition of streptavidin and subsequent specific binding events alter the dielectric environment of the nanoparticle, resulting in a spectral shift of the particle plasmon resonance. As we use single nanoparticles showing a homogeneous scattering spectrum, spectral shifts as small as 2 meV can be detected.

• Real-Time Observation of Structural and Orientational Transitions during Growth of Organic Thin Films

  2006

  Physical Review Letters · 215 Zitationen · DOI

  We study kinetically controlled orientational and structural transitions of molecular thin films during growth in situ and in real time, using diindenoperylene (DIP) as an example. By time-resolved surface-sensitive x-ray scattering (out of plane and in plane), we follow the organic molecular beam deposition of DIP on silicon oxide, on stepped sapphire, and on rubrene as an organic model surface. We identify transitions for the few-monolayer (ML) regime, as well as for thick (several 10's of ML) films. We show that the differences in the interaction of DIP with the substrate change the thickness as well as temperature range of the transitions, which include (transient) strain, subtle changes of the orientation, as well as complete reorientation. These effects should be considered rather general features of the growth of organics, which, with its orientational degrees of freedom, is qualitatively different from growth of inorganics.

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