Efficiency droop in nitride-based light-emitting diodes

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Abstract

Nitride-based light-emitting diodes (LEDs) suffer from a reduction (droop) of the internal quantum efficiency with increasing injection current. This droop phenomenon is currently the subject of intense research worldwide, as it delays general lighting applications of GaN-based LEDs. Several explanations of the efficiency droop have been proposed in recent years, but none is widely accepted. This feature article provides a snapshot of the present state of droop research, reviews currently discussed droop mechanisms, contextualizes them, and proposes a simple yet unified model for the LED efficiency droop. © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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APA

Piprek, J. (2010). Efficiency droop in nitride-based light-emitting diodes. Physica Status Solidi (A) Applications and Materials Science, 207(10), 2217–2225. https://doi.org/10.1002/pssa.201026149

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