Patent ID: 8598599
Filing Date: 2013-12-03
Classification: H01L

Abstract:
1. A Group III nitride semiconductor light-emitting device including a stacked structure comprising an n-contact layer, a light-emitting layer, an electron blocking layer, and a p-contact layer, the layers being sequentially stacked and each of the layers comprising a Group III nitride semiconductor layer whose main surface represents a plane which provides an internal electric field intensity of 10% or less than that of a Group III nitride semiconductor layer including a c-plane main surface, wherein the electron blocking layer has a thickness of 2 to 8 nm and comprises Mg-doped AlGaN having an Al compositional proportion of 20% to 30%, wherein the stacked structure is deposited on an a-plane main surface of a sapphire substrate, and wherein the n-contact layer, the light-emitting layer, and the electron blocking layer comprise an m-plane main surface, which is parallel to the a-plane main surface of the sapphire substrate.