OLED design: combined micro-and nanophotonics modeling, and routes to a complex optimization algorithm

Norbert Danz; Dirk Michaelis; Christoph Wächter

doi:10.1117/12.779058

30 October 2007 OLED design: combined micro-and nanophotonics modeling, and routes to a complex optimization algorithm

Norbert Danz, Dirk Michaelis, Christoph Wächter

Proceedings Volume 6796, Photonics North 2007; 67963F (2007) https://doi.org/10.1117/12.779058
Event: Photonics North 2007, 2007, Ottawa, Canada

Abstract

The efficiency of organic light emitting diodes is known to be optically limited by different light trapping effects within the device structure. Several approaches have been suggested to enhance the transfer of radiation generated within the device into free space radiation. These approaches include nanoscale wave optical effects to optimize the stratified active media or to diffract guided modes travelling within the active system, as well as refractive or scattering elements to derange total internal reflection within the substrate. This paper deals with substrate emitting devices, where nano- or microscale structures enforce a 'recycling' of light that originally would have been trapped within the system. An approach enabling for a combined treatment of ray-optical and thin-film-optimization is introduced and applied to the optimization of an example system. The results indicate an improved system design due to that complex optimization

Citation Download Citation

Norbert Danz, Dirk Michaelis, and Christoph Wächter "OLED design: combined micro-and nanophotonics modeling, and routes to a complex optimization algorithm", Proc. SPIE 6796, Photonics North 2007, 67963F (30 October 2007); https://doi.org/10.1117/12.779058

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