IEEE Photonics Technology Letters · 2007 · 12 citations · 8 references
EngineeringElectrical EngineeringMaterials ScienceOptoelectronicsPhotonicsThin FilmsLight SourcesLight-emitting DiodesLuminescent MaterialsOptical Thin FilmsOptoelectronic DevicesOptoelectronic MaterialsExternal Quantum EfficiencyLight ExtractionLight Extraction EfficiencyLight-emitting DevicesQuantum Efficiency
Thin-film light-emitting diodes (LEDs) belong to the most successful LED concepts for achieving high efficiencies. The incorporation of buried microreflectors with inclined facets prevents the light generation under the top contact and bondpad and offers an additional light extraction scheme. As a result, an external quantum efficiency of 50% could be demonstrated at a wavelength of 650 nm, and a luminous efficiency of more than 100 lm/W could be achieved in the wavelength range from 595 to 620 nm
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Michael R. Krames, Mari Ochiai-Holcomb, G. E. Höfler et al. · Applied Physics Letters · 1999 · 454 citations
High performance thin-film flip-chip InGaN–GaN light-emitting diodes
O.B. Shchekin, J. E. Epler, T. A. Trottier et al. · Applied Physics Letters · 2006 · 335 citations
High brightness AlGaInP light-emitting diodes
K. Streubel, N. Linder, R. Wirth et al. · IEEE Journal of Selected Topics in Quantum Electronics · 2002 · 185 citations