University of California at Santa Barbara is Determining the Origins of Efficiency Loss in Gallium Nitride-Based LEDs Used in Lighting

July 24, 2018

With the help of DOE funding, researchers at the University of California at Santa Barbara are conducting analyses to determine the mechanisms underlying efficiency loss in light-emitting diodes (LEDs) used in solid-state lighting. The researchers’ efforts focus on understanding the cause of the relatively low efficiency of green LEDs, which is commonly referred to as the “green gap,” as well as of the high-temperature efficiency losses known as “thermal droop.”

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