Patent ID: 8669128
Filing Date: 2014-03-11
Classification: H01L

Abstract:
1. A method for producing a light-emitting diode, comprising the steps of: providing a conductive substrate; forming a first electrode electrically contacting the conductive substrate; forming a n-type gallium nitride (GaN) nanorod array consisted of one or more n-type GaN nanorods that arranged on the substrate, forming electrical contact with the first electrode; forming one or more indium gallium nitride (InGaN) nanodisks on each of the n-type GaN nanorod; forming a p-type GaN nanorod array consisted of one or more p-type GaN nanorods, wherein one p-type GaN nanorod is corresponded to one n-type GaN nanorod and is formed on top of the one or more InGaN nanodisks of the corresponded n-type GaN nanorod; and forming a second electrode that electrically contacts with the p-type GaN nanorod array; wherein an emission color of the light-emitting diode is determined by the number and thickness of the one or more indium gallium nitride (InGaN) nanodisks and the light-emitting diode is capable of emitting white light without using phosphor.