研究气相法制备MgO一维纳米结构的简单工艺途径.采用直接热蒸发镁粉的化学气相沉积法在不同条件下分别制备了MgO的纳米棒、纳米线、直角网络结构纳米线、晶须等单晶一维纳米结构.温度、氧分压和过饱和MgO蒸气压等参数对形貌具有重要影响.X射线衍射和选区电子衍射确定MgO纳米结构为立方晶系.扫描电镜和透射电镜对不同产物的形貌进行表征,显示其生长受到气一固生长机制控制.光致发光表明MgO纳米线在381 nm处出现强烈的紫色光发射宽峰.
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