Fig. 10From: Improving the Current Spreading by Locally Modulating the Doping Type in the n-AlGaN Layer for AlGaN-Based Deep Ultraviolet Light-Emitting Diodesa EQE and optical power density in terms of the injection current and b current-voltage characteristics for LEDs A and Di (i = 1, 2, 3, 4, and 5). Inset: the forward voltages for LEDs A and Di (i = 1, 2, 3, 4, and 5) when the current density is 170 A/cm2Back to article page