Patent ID: 7081371

Claim:
A method of fabricating an alloy of Mg, O and Zn having a wide electrical bandgap comprising the steps of: a. providing an Al 2 O 3 substrate in a deposition chamber; b. depositing a layer of MgO on the Al 2 O 3 substrate using laser ablation; c. depositing a layer of ZnO on the Al 2 O 3 substrate using laser ablation after the step of depositing the layer of MgO on the Al 2 O 3 substrate; d. repeating, at least one time, the step of depositing the layer of MgO on the Al 2 O 3 substrate using laser ablation after the step of depositing the layer of ZnO on the Al 2 O 3 substrate using laser ablation; and e. repeating, at least one time, the step of depositing the layer of ZnO on the Al 2 O 3 substrate using laser ablation after the step of depositing the layer of MgO on the Al 2 O 3 substrate using laser ablation, whereby the alloy is formed of alternating layers of MgO and ZnO and wherein the alloy has an electrical bandgap of at least 3.5 eV.