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(Color online) X-ray diffraction pattern (a) and room temperature PL spectrum (b) of the Mg0.52Zn0.48O/MgxZn1−xO/n-ZnO structure, and the inset of (b) displays its absorption spectrum.
(Color online) Typical I-V curve of the Au/MgO/Mg0.52Zn0.48O/MgxZn1−xO/n-ZnO structure, and the inset shows a schematic illustration of the structure.
(Color online) Room temperature EL spectra of the Au/MgO/Mg0.52Zn0.48O/MgxZn1−xO/n-ZnO structure under the injection of continuous current, and the inset shows the dependence of output power on the injection current.
(Color online) Bandgap diagram of the Au/MgO/Mg0.52Zn0.48O/MgxZn1−xO/n-ZnO structure under forward bias showing the generation, multiplication, and injection of electrons and holes.
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