Patent ID: 8860070

Claim:
A vertical GaN-based light emitting diode, comprising: a substrate; a first-doping type ohmic electrode layer arranged on the substrate; a first-doping type GaN-based III-V group semiconductor layer arranged on the first-doping type ohmic electrode layer; a second-doping type GaN-based III-V group semiconductor layer arranged on the first-doping type GaN-based III-V group semiconductor layer; and a second-doping type ohmic electrode layer arranged on the second-doping type GaN-based III-V group semiconductor layer, wherein the first-doping type ohmic electrode layer comprises an Ag-based electrode, and the second-doping type GaN-based III-V group semiconductor layer comprises photonic crystals arranged on an outer surface thereof at a pitch of about 2 μm and a portion of the outer surface between the photonic crystals roughened by photochemical etching.