Patent ID: 8242523

Claim:
A light-emitting diode, comprising: a first electrode; a n-type gallium nitride (GaN) nanorod array consisted of n-type GaN nanorods ohmic contacting with the first electrode; one or more indium gallium nitride (InGaN) nanodisks disposed on each of the n-type GaN nanorods; a p-type GaN nanorod array consisted of p-type GaN nanorods, wherein one p-type GaN nanorod is corresponded to one n-type GaN nanorod and is disposed on top of the one or more InGaN nanodisks of the corresponded n-type GaN nanorod; and a second electrode ohmic contacting with the p-type GaN nanorod array; wherein wavelengths of electroluminescent emissions of the light-emitting diode are insensitive to an increase of an injection current.