University of Freiburg

Institute of Physics

Experimental Atomic and Molecular Physics


Spectroscopy of acene derivates in rare gas matrices

The goal of this project is to apply high-resolution spectroscopy techniques on organic molecules to get a more fundamental insight into their excitation structure and the effect of neighbouring molecules and the surrounding medium.

Polycyclic aromatic molecules like pentacene and its derivatives are of special interests because they are promising candidates for organic photovoltaics and organic field- effect transistors. Collective processes like singlet fission or photon up conversion with triplet-triplet annihilation can boost the light harvesting efficiency of organic semiconductors.

As a bottom up approach, we are using the benefits of cluster isolation spectroscopy like an effective cooling of the sample and the existence of a well-defined quantum system, and go from the single molecule to the ensemble of molecules.