I am a member of the Max Planck Research Group for Organic Optoelectronics at the Max Planck Institute for Polymer Research in Mainz.
The exchange of fullerene derivatives with alternative acceptors is a promising approach to improve device performances. A prospective candidate is the class of perylene diimide (PDI) derivatives, as they exhibit strong absorption in the visible and their energy levels can be easily tuned by variation of the substituents on different positions following diverse synthetic approaches. The aim of my doctoral thesis is to implement different polymers as donors in combination with new PDI-based acceptors in organic solar cells and to investigate the loss mechanisms by applying different techniques such as subpicosecond to millisecond pump-probe transient absorption spectroscopy (TA) and time-resolved photoluminescence (TRPL) spectroscopy.
My work is funded by the "Fonds der Chemischen Industrie" with a Kekulé scholarship.