Stach Group
The Stach Group develops and applies electron, ion, and X-ray microscopy techniques to study catalysis, energy storage materials, solar photovoltaics, and nanostructure growth.
Tracking cation migration, phase evolution, and degradation in next-generation cathodes and solid-state electrolytes under operating conditions.
Linking active-site structure and dynamics to performance for CO₂ reduction, water splitting, and the generation of solar fuels.
Imaging defects, interfaces, and polarization dynamics in wide-bandgap semiconductors and ferroelectric devices.
The development and application of new instrumentation has been a critical component of our research focus for over 20 years. We use microscopes to obtain imaging, diffraction, and spectroscopy data from materials in their native environments — preferably as they function.
See open methods & tools →
Working with the Jariwala and Olsson groups, a recent Device (Cell Press) article demonstrates that ultrathin Al1−xScxN can enable low-voltage ferroelectric switching, which is essential for future energy-efficient computing paradigms.
Working with Peter Voorhees and Duncan Burns, at Northwestern, we show that interfacial energy gradients guide nanoparticle migration and coalescence on heterogeneous substrates.
Penn is a partner institution in the renewed five-year Energy Frontier Research Center led by the University of Chapel Hill, in partnership with Yale University, Brookhaven National Laboratory, North Carolina State University and Princeton University
We welcome applications from prospective Ph.D. students, postdocs, and visiting researchers.
