US Patent 7847312 Nitride semiconductor light-emitting device

A nitride semiconductor light-emitting device including a first n-type nitride semiconductor layer, a light-emitting layer, a p-type nitride semiconductor layer, and a second n-type nitride semiconductor layer in this order, and further including an electrode formed of a transparent conductive film on the second n-type nitride semiconductor layer is provided. The nitride semiconductor light-emitting device has improved light extraction efficiency. The electrode formed of a transparent conductive film is preferably formed on a part of a surface of the second n-type nitride semiconductor layer.