Patent ID: 9166098
Filing Date: 2015-10-20
Classification: H01L

Abstract:
1. A nitride semiconductor light emitting device comprising: a substrate; and an n-type nitride semiconductor layer, an active layer and a p-type nitride semiconductor layer sequentially stacked on the substrate, wherein the active layer is formed of a multi quantum well structure where a plurality of barrier layers and a plurality of well layers are arranged alternately with each other, at least one of the plurality of barrier layers comprises a first barrier layer including a p-doped barrier layer doped with a p-dopant and at least one undoped barrier layer, the active layer comprises a plurality of second barrier layers doped with an n-dopant in an area adjacent to the n-type nitride semiconductor layer, and wherein the p-doped barrier layer doped with the p-dopant contacts at least one undoped barrier layer.