Subsequent projects

Prof. Dr. Wolfgang Brütting
University of Augsburg
Lehrstuhl für Experimentalphysik IV


Prof. Dr. Mark E. Thompson
University of Southern California,
Los Angeles
Department of Chemistry

Understanding molecular orientation in phosphorescent OLEDs

Organic light-emitting diodes (OLEDs) using metal-organic Iridium complexes show efficient phosphorescence, however, only a small fraction of the internally produced optical energy can actually be extracted as visible light. This fraction can be significantly increased, if the transition dipole moments of the dye molecules have a preferential orientation in the film plane.

The goal of this joint project is to understand the microscopic mechanism of molecular orientation in phosphorescent guest-host systems and to demonstrate its applicability in OLEDs. We will combine the complementary expertise of both groups in synthesis of model compounds and optoelectronic characterization of devices, respectively, to achieve a better understanding of the underlying effects.

 

Primary project: Influence of molecular orientation in organic optoelectronic devices


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