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Efficiency and Droop Improvement in InGaN/GaN Light-Emitting Diodes by Selective Carrier Distribution Manipulation

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Academic year: 2021

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Fig. 1. Calculated band diagrams of (a) conventional LED, (b) LED I with all its barriers graded, (c) LED II with its fifth barrier graded, and (d) LED III with its fourth and fifth barriers graded at 100 A/cm 2 .
Fig. 2. (a) Hole concentrations and (b) electron concentrations of conventional LED, LED I, LED II, and LED III at 40 A/cm 2 .
Fig. 5. Simulated (a) light output power and (b) relative EQE as functions of current density for conventional LED, LED I, LED II, and LED III.

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