Research in the Theoretical Solid State Physics group
The group uses and develops electronic structure methods for the investigation of light-matter interaction in crystalline materials.
Recently, the group has focused on the influence of exciton-phonon interaction on spectroscopic properties. We apply our methods to 2D materials and semiconductors that are interesting for the development of solar cells and opto-electronic devices.
Spectroscopy of 2D Materials
Spectroscopy and search for new materials
2-dimensional materials are currently attracting a lot of interest. They are only one atomic layer thick and are promising for applications in opto-electronics and sensing. Excitonic effects (electron-hole attraction) are particularly pronounced due to the 2D environment and weak dielectric screening.
We use many-body perturbation theory to calculate optical spectra including excitonic effects on the level of the Bethe-Salpeter equation. We participate in the search for new 2D crystals (via high-throughput and machine learning methods) and predict their optical properties.