Bachleor & Master Projects

Subjects of Bachelor or Master projects follow the ideas of the general research lines. Instead of giving specific topics for either Bachelor or Master thesis more general ideas are indicated. Please, get in contact with us to learn more about current topics and tell us your interest. Together we may make a good choice.

The our main research lines are color centers in semi conductors and adsorbate system at surfaces.

Our interest in color centers, or more generally defects in semiconductors is driven by defect engineering of the electronic and magnetic properties and their optical transitions that can be exploited for the implementation of solid state quantum bits. Quantum bits enable quantum applications such as quantum sensing, quantum communication and cryptography, and quantum computers.

Our focus in adsorbates systems at surfaces comprise the adsorbtion of single molecules and adsorbate monolayers and films. Recently we investigated phorphyrins and now want to extend our research to phthalocyanines and other functional organic molecules.  

More details on these research topics can be found on our research pages.

Color centers and defects in SiC and 2D materials

  • photo & spin physics of quantumbits, quantumsensors, and single photon emitters
  • physics of recombination centers in SiC: non-radiative recombination of electrons and holes
  • modeling of defect complex using density function theory in SiC or 2D materials such as hexagonal BN sheets or dichalcogenides
  • defect kinetics for selected defects in SiC
  • calculation and analysis of excited states and optical spectra using many body approaches such as configuaration interaction with effective Coulomb interactions (CI-CRPA) or many body perturbation theory within the GW- and BSE-approaches

Functional molecules at surfaces

  • properties of complex molecules such as porphyrins and phthalocyanins at surfaces
  • modeling of the adsorbate systems at surfaces using density functional theory
  • adsorption geometries and interaction with the substrate
  • electronic structure: level alignment using manybody perurbation theory and hybrid schemes
  • photo physical properties of molecules at surfaces
The adsorption of Co-tetraphenyl-porphyrin at relevant low-coordinated sites on MgO(100) shows distinct features from terrace-site and multilayer films in the near-valence and corelevel regions of the electronic structure.