Monolithic white light emitting device

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A monolithic white light emitting device is provided. An active layer in the monolithic white light emitting device is doped with silicon or rare earth metal that forms a sub-band. The number of active layers included in the monolithic white light emitting device is one or two. When two active layers are included in the monolithic white light emitting device, a cladding layer is interposed between the two active layers. According to this light emission structure, white light can be emitted by a semiconductor, so a phosphor is not necessary. The monolithic white light emitting device is easily manufactured at a low cost and applied to a wide range of fields compared with a conventional white light emitting device that needs a help of a phosphor.