Patent ID: 8148731
Filing Date: 2012-04-03
Classification: H01L,H01S

Abstract:
1. A p-n junction based semiconductor light emitting device, comprising: a substrate, a ZnO based buffer layer formed on said substrate, a ZnO based first cladding layer formed on said ZnO based layer, a ZnO based layer formed between said buffer layer and said first cladding layer, a ZnO based first barrier layer formed on said first cladding layer, a ZnO based active layer formed on said first barrier layer, a ZnO based second barrier layer formed on said active layer, a ZnO based second cladding layer formed on said second barrier layer, and a ZnO based topmost electrical contact layer formed on said second cladding layer, wherein at least one layer, selected from the group of layers consisting of the buffer layer, the layer formed between the buffer layer and the first cladding layer, the first cladding layer, the first barrier layer, the active layer, the second barrier layer, the second cladding layer, and the topmost electrical contact layer, comprises Be with one or more of the alloys ZnCdOSSe, ZnCdSeO, ZnCdSO, ZnSSeO and ZnSO, the atomic fraction of Be and the one or more alloys being selected such that a lattice structure of the at least one layer matches a lattice structure of an adjacent one of said group of layers.