Subsequent projects

New Materials for Application in OLEDs on the Basis of Copper-Compounds

Organic Light Emitting Diodes (OLEDs) represent a fascinating new technology which has made the step from a niche to the mass market. Small OLED displays are already widely spread in cell phones and first 55’’ OLED TVs have been announced for fall this year. However, the materials that are currently used as emitters in OLEDs still suffer from problems, such as long-term stability and power efficiency at high brightness especially for the blue and for the red. Moreover, the emitter compounds currently used are based on platinum and iridium compounds which are rather expensive materials. In this project, a new class of emitter materials is investigated which is based on copper complexes. Besides the better availability and lower price of copper compared to the currently used noble metals, copper complexes can show the “singlet harvesting effect” which can significantly increase the efficiency of OLEDs. 

Primary project: New Triplet Emitter Materials for Organic Light Emitting Diodes (OLEDs)

Final Report

In cooperation with the research group of Prof. Dr. Mark E. Thompson located at the University of Southern California (USC), Los Angeles (USA) new emitter materials have been developed which are suited for the application in organic light-emitting diodes (OLEDs). In the beginning of the cooperation, the focus was on the synthesis and photophysical characterization of new platinum and iridium complexes. In the scope of the consecutive funding, research was extended to the promising class of Cu(I) compounds. Through detailed investigations and the intensive cooperation of the Regensburg and Los Angeles groups, which was only made possible by the support of BaCaTeC, a deep understanding of the emission properties of the newly developed emitter classes could be obtained. The results have been published in international, highly recognized journals. Furthermore, the results have been presented to a broader audience at international conferences.



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