Research topics

The working group's field of activity is physically oriented materials science with a focus on solid-state kinetics. Kinetic processes and reactions in solids and at interfaces play a key role in the production and optimization of structural and functional materials as well as for the function of components. In this context, atomic/ionic transport mechanisms (diffusion), defect equilibria and interfacial reactions are of great importance for understanding fundamental and application-related properties.

Our work focuses on time-resolved thin film and interface analysis on the nanometer/micrometer scale including in-situ characterization of materials and processes. We use ion analytical methods (SIMS), neutron and X-ray diffraction (NR, XRR, XRD), infrared spectroscopy (FTIR) as well as electrochemical (EIS, CV, GITT, PITT) and electron optical (SEM, EDX) methods. We also deal with the production of thin films using sputtering methods.

Our research topics are

Diffusion in solids

• Lithium diffusion in electrode materials for Li-ion batteries
• Ion transport and point defects in metal oxides
• Hydrogen in solids
• In-situ tracer diffusion in solids with neutron reflectometry

Kinetic processes in solids and at interfaces

• Electrode processes in Li-ion batteries
• Interface processes and reactive diffusion kinetics in resistance spot welding (Al-Cu) and composite casting (Al-Cu-Zn)

Other topics

• Production of thin films by means of reactive sputtering
• Electrochemical characterization of thin film electrodes

Here you will find information on current research projects.