Research Groups and Themes

FUNCTIONAL NANOSTRUCTURES

The research groups of the Professorship of Functional Nanostructures are working on the synthesis and characterization of novel colloidal nanoparticles with different shapes, sizes and materials and corresponding properties as well as the assembly of these particles into macroscopic and microscopic superstructures. The spectroscopic, electrochemical and structural characterization of these novel materials provides information on their physicochemical properties in terms of carrier dynamics and conductivity, band structure, plasmonics as well as optical or magnetic properties, especially with respect to interparticle interactions.

Drei einzelne, hellrotfluoreszierende Nanopartikel-Hydrogele in Eppendorff Tubes Drei einzelne, hellrotfluoreszierende Nanopartikel-Hydrogele in Eppendorff Tubes Drei einzelne, hellrotfluoreszierende Nanopartikel-Hydrogele in Eppendorff Tubes
Assembly of Colloidal Systems | Prof. Dr. Nadja-Carola Bigall  
Zwei Gläser mit phasengetrennten Flüssigkeiten. Links: grünfluoreszierende Nanopartikel in organischer Phase. Rechts: gelbfluoreszierende Nanopartikel in wässriger Phase. Zwei Gläser mit phasengetrennten Flüssigkeiten. Links: grünfluoreszierende Nanopartikel in organischer Phase. Rechts: gelbfluoreszierende Nanopartikel in wässriger Phase. Zwei Gläser mit phasengetrennten Flüssigkeiten. Links: grünfluoreszierende Nanopartikel in organischer Phase. Rechts: gelbfluoreszierende Nanopartikel in wässriger Phase.
Colloid Chemistry of Metals and Semiconductors, Spectroscopic Effects | ap. Prof. Dr. Dirk Dorfs  
Küvette mit kolloidalen Nanopartikeln in einem Laser-Setup für Ultrakurzzeit-Spektroskopie. Der rote Laserpunkt ist auf der Küvette sichtbar. Küvette mit kolloidalen Nanopartikeln in einem Laser-Setup für Ultrakurzzeit-Spektroskopie. Der rote Laserpunkt ist auf der Küvette sichtbar. Küvette mit kolloidalen Nanopartikeln in einem Laser-Setup für Ultrakurzzeit-Spektroskopie. Der rote Laserpunkt ist auf der Küvette sichtbar.
Transient Absorption Spectroscopy, 2D Semiconductors | Dr. Jannika lauth  
Eine Probe wird in die Schleuse des Rasterelektronenmikroskops gesetzt. Eine Probe wird in die Schleuse des Rasterelektronenmikroskops gesetzt. Eine Probe wird in die Schleuse des Rasterelektronenmikroskops gesetzt.
Thermo-Iono-Electronic Materials and Microstructure Analysis | Prof. Dr. Armin Feldhoff

COMPLEX INTERFACES AND MOLECULES

The research groups in the area of complex interfaces and molecules deal with questions of structure and dynamics in the scale range from molecules to macroscopic effects at solid-state interfaces. In the research field Complex Interfaces, reactions and structure formation in solid-state interfaces and their dynamics are investigated using experimental and theoretical methods. In the field of molecules, trend-setting time domain coherence techniques are developed in FT-microwave spectroscopy and intra- and intermolecular properties of molecules and clusters are investigated with supersonic expansion sources.

UHV System with Auger Eectron Spectrometer | AG Becker
Interfacial Effects in Composite Materials | AG Becker
IMPACT Microwave Spectrometer | AG Grabow

 

 

NANOSTRUCTURED FUNCTIONAL LAYERS AND MATERIALS

The research groups in the Research Area Nanostructured Functional Layers and Materials deal with functional materials for catalysis and gas separation as well as energy conversion, transport and storage.

Catalysis and Membranes | Prof. Dr. Jürgen Caro

DYNAMICS IN HETEROGENEOUS CATALYSIS

The focus of the working group is the investigation of the dynamics of surface reactions and the development of catalytic model systems. As a result of self-organization processes, the formation of chemical wave patterns, reaction-induced restructuring of the catalyst and rate oscillations are observed in certain surface reactions. In addition to these phenomena, which can be assigned to the so-called nonlinear dynamics, the working group is working on questions concerning the pressure and material gap in heterogeneous catalysis, the electrochemical promotion of heterogeneous catalysed reactions and the nano and micro structuring of catalysts.

[Translate to English:] Physikalische Materialchemie | Prof. Dr. Ronald Imbihl [Translate to English:] Physikalische Materialchemie | Prof. Dr. Ronald Imbihl [Translate to English:] Physikalische Materialchemie | Prof. Dr. Ronald Imbihl
Physical Chemistry of Materials | Prof. Dr. Ronald Imbihl

POLYMERS AND BIOMATERIALS

The focus of the research group is the investigation of bio-attractive or bio-repulsive materials and surface coatings with high cell- and bio-compatibility. Ideally, these materials can even switch their properties on demand with short response times for application in the biomedical field. Therefore, an in-depth characterisation of material surfaces and coatings in terms of hydrophilicity, roughness, thickness, elasticity and biocompatibility is essential in order to correlate the biological response with the material properties of the substrate.  

THEORETICAL CHEMISTRY

The research group is investigating the simulation of chemical reactions. We solve the time-independent Schrödinger equation for the electrons of a molecular system using the density functional approximation. Our individual projects are structured according to the way in which a chemical system is reacted: Photochemistry (by light), mechanochemistry (by mechanical stress), electrochemistry (by electric current).

Theoretical Chemistry | Prof. Dr. Irmgard Frank