Passivated light emitting device

摘要

Provided are a light emitting device, a light emitting device package, and a lighting system. The light emitting device includes a light emitting structure (101) comprising a first conductive type semiconductor layer (116), a second conductive type semiconductor layer (112), and an active layer (114) between the first conductive type semiconductor layer and the second conductive type semiconductor layer, and a passivation layer (130) protecting a surface of the light emitting structure. The passivation layer includes a first passivation layer (131) on a top surface of the light emitting structure and a second passivation layer (132) having a refractive index different from that of the first passivation layer, the second passivation layer being disposed on a side surface of the light emitting structure. The second passivation layer has a refractive index greater than that of the first passivation layer.