Patent ID: 7928452

Claim:
A GaN-based semiconductor light-emitting element comprising: a first GaN-based compound semiconductor layer of n-conductivity type; an active layer; a second GaN-based compound semiconductor layer of p-conductivity type; a first electrode electrically connected to the first GaN-based compound semiconductor layer; a second electrode electrically connected to the second GaN-based compound semiconductor layer; an impurity diffusion-preventing layer composed of an undoped GaN-based compound semiconductor, the impurity diffusion-preventing layer preventing a p-type impurity from diffusing into the active layer; and a laminated structure, wherein the impurity diffusion-preventing layer and the laminated structure are disposed, between the active layer and the second GaN-based compound semiconductor layer, in that order from the active layer side; and the laminated structure includes at least one laminate unit in which a GaN-based compound semiconductor layer of p-conductivity type and an undoped GaN-based compound semiconductor layer are stacked in that order from the active layer side.