Patent ID: 8268658

Claim:
A method for making a light emitting diode, comprising steps of: providing a substrate; forming an Al-doped zinc oxide layer on the substrate; etching the Al-doped zinc oxide layer to form a plurality of first electrode layers; growing a plurality of zinc-oxide-nanowire buffering segments on each of the first electrode layers; growing an N-type gallium nitride nanowire segment on each of the zinc-oxide-nanowire buffering segment; growing a P-type gallium nitride nanowire segment on the N-type gallium nitride nanowire segment, thereby, forming a plurality of light emitting nanowires on the first electrode layer, each light emitting nanowire comprising the zinc-oxide-nanowire buffering segment, the N-type gallium nitride nanowire segment and the P-type gallium nitride nanowire segment; forming an insulating layer on the substrate and the first electrode layers to embed the light emitting nanowires therein with each of the P-type gallium nitride nanowire segment having a distal portion exposed from the insulating layer; and forming a plurality of second electrode layers on the insulating layer to cover the distal portions of the P-type gallium nitride nanowire segments, each second electrode layer spatially corresponding the respective first electrode layer.