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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Tokushima, Japan - 6 March 2024: Nichia, the world's largest LED manufacturer and inventor of the high-brightness blue and white LED, has started mass production of the new UV-B (308nm) and UV-A (330nm) LEDs in its popular 434 Series packa... READ MORE

New XLamp® S Line LEDs enhance growth, last longer, lower energy costs Horticulture and other forms of agricultural lighting require application-tuned ratios of spectral content, high efficacy and long lifetimes. Whether you are interested... READ MORE