Yuantao Zhang

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Undoped, n-doped and p-type ZnO as well as MgZnO alloy thin films were grown by metal-organic chemical vapor deposition (MOCVD) on sapphire. The structural, optical and electrical properties of ZnO films were investigated using X-ray diffraction (XRD), Raman spectrum, photoluminescence (PL) spectrum, transmission spectra and Hall effect, respectively. ZnO(More)
Recently, an urgent requirement of ultraviolet (UV) semiconductor laser with lower cost and higher performance has motivated our intensive research in zinc oxide (ZnO) material owing to its wide direct band gap and large exciton binding energy. Here, we demonstrate for the first time continuous-wave laser in electrically-pumped hollow polygonal(More)
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