Patent ID: 8222658

Claim:
A semiconductor light emitting element comprising: a zinc oxide (ZnO) single crystal substrate with a substrate surface of a plane orientation insusceptible to a piezo electric field; a Lattice-matched layer disposed on the substrate surface and lattice-matched with the ZnO single crystal substrate, the Lattice-matched layer comprising a zinc magnesium beryllium cadmium oxide (Zn 1-a-b-c Mg a Be b Cd c O, 0≦a<1, 0≦b<1, 0≦c<1, a+b+c≦1); an active layer of indium gallium nitride (In x Ga 1-x N, 0<x<1); an upper cladding layer and a lower cladding layer in contact with the active layer and lattice-matched at least with the active layer and the Lattice-matched layer; and a contact layer formed on the upper cladding layer.