Subsequent projects

Prof. Dr. Anna Köhler
University of Bayreuth
Lehrstuhl für Experimentalphysik II

Prof. Dr. Thuc-Quyen Nguyen
University of California, Santa Barbara
Dept. of Chemistry and Biochemistry

Controlling of interchromophore interactions in organic semiconductor devices

The performance of organic semiconductor devices such as organic solar cells (OSCs), organic field effect transistors (OFETs) and organic light-emitting diodes (OLEDs) can be significantly improved by tuning the electronic interaction between adjacent chromophores, e.g. through suitable processing. In this project, we study the process of aggregation in solution and during the formation of a thin film. A central question is the role of conformational rigidity and torsion in controlling the aggregation processes. To study this issue, we will perform optical spectroscopic measurements and measurements of charge carrier mobility on carefully chosen soluble molecules, and compare the experimental results to those we obtain by Monte-Carlo-Simulations.


Primary project: Understanding photocurrent generation in organic solar cells


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