Fig. 13From: On the p-AlGaN/n-AlGaN/p-AlGaN Current Spreading Layer for AlGaN-based Deep Ultraviolet Light-Emitting Diodesa Optical output power density and EQE as a function of the injection current, b current-voltage characteristic for LEDs A, N1, N2, N3, and N4. Inset figure shows the zoom-in current-voltage curvesBack to article page