2021-12-30

Effect of Auger Electron–hole Asymmetry on Efficiency Droop in InGaN QW LEDs

Indium gallium nitride (InGaN)-based blue light-emitting diodes (LEDs) are the backbone of the solid-state lighting (SSL), but their luminous efficiency peaks under low current densities (<35A/cm2) and rolls off under high current injection levels (efficiency droop), requiring a design tradeoff between light output power, efficiency and cost. It is widely accepted that Auger recombination is the main cause for the experimentally observed large (~50%) efficiency droop in III–nitride LEDs. Yet there is no clear understanding of the origin of the magnitude of Au...
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LEDVANCE is proud to announce that three of its most innovative lighting solutions have won recognition in the 2025 Illuminating Engineering Society (IES) Progress Report, a prestigious annual showcase of advancements in lighting technology. T... READ MORE

XLamp® CTW LEDs bring lighting flexibility to life New XLamp® CTW Series – Two-Channel CCT-Tunable White COB LEDs Cree LED’s XLamp CTW Series redefines CCT-tunable COB LEDs with unmatched lumen density, efficiency and de... READ MORE