Light emitting diode, light emitting diode package and lighting system having the same

摘要

Disclosed are a light emitting device and a light emitting device package having the same. The light emitting device (100) includes a first conductive type semiconductor layer (105); an active layer (107) including a barrier layer (171) and a well layer (172) alternately disposed on the first conductive type semiconductor layer; and a second conductive type semiconductor layer (109) on the active layer. At least one well layer includes an indium cluster having a density of 1E11/cm 2 or more.