Patent ID: 8445938

Claim:
A nitride semi-conductive light emitting device comprising; a single crystal substrate; a first buffer layer laminated to a top side of said single crystal substrate; an n-type nitride semi-conductive layer laminated to a top side of said first buffer layer; a second buffer layer laminated to a top side of said n-type nitride semi-conductive layer; a light emitting layer laminated to a top side of said second buffer layer; a p-type nitride semi-conductive layer laminated to a top side of said light emitting layer; wherein said nitride semi-conductive light emitting device further comprises a third buffer layer provided, between said second buffer layer and said light emitting layer, said third buffer layer being doped with an impurity serving as a donor, wherein said third buffer layer has the same components as said second buffer layer, and wherein concentration of said donor in said third buffer layer is in the range of 1×10 16 to 7.5×10 16 cm −3 .