Structure and optical properties of cored wurtzite (Zn, Mg) O heteroepitaxial nanowires

The synthesis, structure, and optical properties of one-dimensional heteroepitaxial cored (Zn, Mg) O semiconductor nanowires grown by a catalyst-driven molecular beam epitaxy technique are discussed. The temperature-dependent photoluminescence shows a slight blueshift in the near band edge peak, which is attributed to a few percent Mg doping in the nanoscale ZnO core.