A light emitting diode

A light emitting diode device may include a carrier, a p-type and n-type semiconductor layers, an active layer, a first electrode and a second electrode. The carrier has a growth surface and at least one nano-patterned structure on the growth surface, in which the carrier includes a substrate and a semiconductor capping layer disposed between the substrate and the n-type semiconductor layer. The n-type semiconductor layer and the p-type semiconductor layer are located over the growth surface of the carrier. The active layer is located between the n-type and p-type semiconductor layers, in which a wavelength [lambda] of light emitted by the active layer is 222 nm<=[lambda]<=405 nm, and a defect density of the active layer is less than or equal to 5*1010/cm2. The first and second electrodes are respectively connected to the n-type and p-type semiconductor layers. A carrier for carrying a semiconductor layer is also provided.