Figure 4 | Scientific Reports

Figure 4

From: High density GaN/AlN quantum dots for deep UV LED with high quantum efficiency and temperature stability

Figure 4

Electrical characteristics of GaN/AlN QDs UV LED.

(a) EL spectra from the GaN/AlN QDs UV LED with varying DC current at RT. Insets depict the current-voltage characteristics of the fabricated GaN/AlN-QD UV-LED chip and visible blue emission from blue phosphors excited by the UV emission. (b) The temperature distributions of the UV-LED chip under different injection currents. (c) Wavelength shift of the UV-LED chip in the 1.0–100 mA range with respect to 1.0 mA.

Back to article page