III-NITRIDE LIGHT EMITTING DEVICE WITH REDUCED STRAIN LIGHT EMITTING LAYER

摘要

In accordance with embodiments of the invention, strain is reduced in the light emitting layer of a Ill-nitride device by including a strain-relieved layer in the device. The surface on which the strain-relieved layer is grown is configured such that strain-relieved layer can expand laterally and at least partially relax. In some embodiments of the invention, the strain-relieved layer is grown over a textured semiconductor layer or a mask layer. In some embodiments of the invention, the strain-relieved layer is group of posts of semiconductor material.