Figure 6 | Scientific Reports

Figure 6

From: Study on Light Extraction from GaN-based Green Light-Emitting Diodes Using Anodic Aluminum Oxide Pattern and Nanoimprint Lithography

Figure 6

(a) Schematic structure of AAO-LED for FDTD simulation; (b) calculated light extraction enhancements of AAO- and PhC-LEDs with different pore depths using 3D FDTD. Far-field emission pattern projections from (c) PhC-LED and (d) AAO-LED. A six-fold symmetry is observed in the far-field pattern of the PhC-LED, but not in the AAO-LED. Therefore, the light in the PhC-LED mainly distributes inside narrow zenith angle while more light is extracted from high zenith angle in the AAO-LED. The far-field pattern of the AAO-LED is affected by the fluctuation of the domain orientation in the simulation area.

Back to article page