Patent ID: 8304803

Claim:
A light-emitting diode, comprising: an n-type nitride semiconductor layer; a multiple quantum well; a p-type nitride semiconductor layer; a window electrode layer; a p-side electrode; and an n-side electrode, wherein: the n-type nitride semiconductor layer, the multiple quantum well, the p-type nitride semiconductor layer, the window electrode layer, the p-side electrode, and the n-side electrode are stacked in this order, the n-side electrode is electrically connected to the n-type nitride semiconductor layer, the window electrode layer comprises an n-type single-crystalline ITO transparent film and an n-type single-crystalline ZnO transparent film, the p-type nitride semiconductor layer is in contact with the n-type single-crystalline ITO transparent film, the n-type single-crystalline ITO transparent film is contact with the n-type single-crystalline ZnO transparent film, the p-side electrode is connected with the n-type single-crystalline ZnO transparent film, the n-type single-crystalline ITO transparent film contains not only In but also Ga, the n-type single-crystalline ITO transparent film has a molar ratio of Ga/(In +Ga) of not less than 0.08 and not more than 0.5, and the n-type single-crystalline ITO transparent film has a thickness of not less than 1.1 nm and not more than 55 nm.