Mg掺杂ZnO微纳米棒与球的制备及生长机制

Preparation and Growth Mechanism of Mg-Doped ZnO Micro-Nano Spheres

采用化学气相沉积法(CVD)在导电玻璃衬底上制备了Mg掺杂的ZnO微纳米棒、微纳米球,实验过程不需要催化剂.X射线衍射仪(XRD)分析结果表明制备的Mg掺杂ZnO微纳米棒仍具有六方铅锌矿结构.利用扫描电子显微镜(SEM)观测,750℃恒温、载入氩气流速为100 mL/min的样品,有微纳米棒、微纳米球的生成.能谱图(EDS)和光致发光谱测试表明微纳米棒中有Mg的掺入.

Mg-doped ZnO micro-nano-rods and micro-nanoparticeles are prepared by chemical vapor deposition（CVD） without any catalyst.The experimental substrate is conductive glass.X-ray diffraction（XRD） reveals that the Mg-doped ZnO micro-nano spheres are crystallinity with wurtzite structure.Scanning electron microscopy（SEM） images show that Micro-nano-rods and micro-nano sphere are synthesized at temperature of 750 ℃ and flow rate of Argon is 100mL/min.Energy spectra（EDS） and photoluminescence spectra show that Mg atomics are doped.