Answers are grounded in this paper and cite their sources.
By incorporating current crowding effect into the conventional ABC model, we theoretically and directly uncover the black box of the relationship between the current diffusion and the internal quantum efficiency, light extraction efficiency, and external quantum efficiency droop of the light emitting diodes (LEDs). A general formula for the current diffusion length (Lₛ) has been derived. The design strategies on the current blocking layer and the transparent conductive layer to increase theLₛhave been analyzed. The impact of the vertical resistance (Rₛ) on the LED wall-plug efficiency (WPE) has also been addressed. We have found there exists an optimizedRₛ, and the LED WPE is not always monotonically increasing as theRₛdecreases. Besides, our previous experiment results have been summarized to verify the theoretical analysis.
No takes yet. Share an insight, caveat, or question.
Wang et al. (2015) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: