Patent ID: 8569738

Claim:
A semiconductor light emitting device comprising: a first layer including at least one of n-type GaN and n-type AlGaN; a second layer including p-type AlGaN; a light emitting portion provided between the first layer and the second layer, the light emitting portion having a single quantum well structure; and a first stacked structural body provided between the first layer and the light emitting portion; the single quantum well structure including, a first barrier layer including Al x1 Ga 1-x1-y1 In y1 N (0<x1, 0<y1, x1+y1<1), a second barrier layer provided between the first barrier layer and the second layer and including Al x2 Ga 1-x2-y2 In y2 N (0<x2, 0≦y2, x2+y2<1), and a well layer provided between the first barrier layer and the second barrier layer; including Al x0 Ga 1-x0-y0 In y0 N (0≦x0, 0<y0, x0+y0<1, y1<y0, y2<y0); the first stacked structural body including, a plurality of third layers including AlGaInN, each of the plurality of third layers having a thickness smaller than a thickness of the first barrier layer and smaller than a thickness of the second barrier layer, and a plurality of fourth layers alternately stacked with the plurality of third layers and including GaInN, each of the plurality of fourth layers having a thickness smaller than a thickness of the well layer.