Patent ID: 8330173

Claim:
A light emitting diode, comprising: a substrate; an array of nanostructures, each of the nanostructures includes a core nanorod formed substantially perpendicularly to the substrate and having a first nanorod of a first conductivity type, a (Al x In y Ga 1-x-y )N (where, 0≦x≦1, 0≦y≦1 and 0≦x+y≦1) quantum well, and a second nanorod of a second conductivity type, all of them being joined in a longitudinal direction, and a nano shell formed of a material with a bandgap greater than that of the (Al x In y Ga 1-x-y )N quantum well to surround at least the (Al x In y Ga 1-x-y )N quantum well of the core nanorod and configured to reduce non-radiative recombination; and a transparent electrode connected in common to the second nanorods, wherein the nano shell covers at least a portion of the sidewall of the first nanorod, the quantum well, and at least a portion of the sidewall of the second nanorod, and wherein the nano shell does not cover a tip of the second nanorod and a region between the nanostructures.