Fig. 17From: Improving the Current Spreading by Locally Modulating the Doping Type in the n-AlGaN Layer for AlGaN-Based Deep Ultraviolet Light-Emitting DiodesRelationship between WPE and the injection current for LEDs A and Ni (i = 1, 2, 3, 4, and 5). Inset: the EQE and WPE for the investigated LEDs structured with various NPN-AlGaN number when the current density is 170 A/cm2Back to article page