Windisch, ReinerReinerWindischHeremans, PaulPaulHeremansKnobloch, AlexanderAlexanderKnoblochKiesel, P.P.KieselDohler, G. H.G. H.DohlerDutta, BarundebBarundebDuttaBorghs, GustaafGustaafBorghs2021-10-142021-10-141999https://imec-publications.be/handle/20.500.12860/4027Light-emitting diodes with 31% external quantum efficiency by outcoupling of lateral waveguide modesJournal article