InGaN-Based Nanocolumn Optical Devices

Abstract

Well-rdered InGaN/GaN nanocolumn (NC) arrays with dislocation filtering and lattice strain relaxation properties can be used to enhance the visible luminous efficiency. These arrays were employed to realize the monolithic integration of multicolor NC micro LEDs, flip-chip bonding of NC LEDs on CuW, and random lasing in structurally graded NC photonic crystals.