Patent ID: 8053794

Claim:
A nitride semiconductor light-emitting device, comprising: a substrate; a first nitride semiconductor layer on the substrate; an active layer formed on the first nitride semiconductor layer; a second nitride semiconductor layer formed on the active layer; and a single AlInN layer including silicon, which comes in contact with the second nitride semiconductor layer and transmits the light emitted from the active layer, wherein the first nitride semiconductor layer comprises: a GaN based layer into which In is doped or not doped; a first electrode layer comprising a single layer into which Si and In are co-doped, the first electrode layer formed on the GaN based layer; and an In x Ga 1−x N layer formed on the first electrode layer, wherein the active layer includes a well layer and a barrier layer having InGaN, wherein the In x Ga 1−x N layer is disposed between the first electrode layer and the well layer, and wherein an amount of indium in the In x Ga 1−x N layer is lower than an amount of indium in the well layer.