不同形貌的氧化锌生长机制及光学性能比较

采用化学气相沉积的方法，通过调控压强和蒸发温度等条件，制备得到了梳状、超长悬臂和螺旋等形状各异的 ZnO 纳米材料，并对 ZnO 纳米材料的生长机制和动力学特性进行了初步探讨。利用X 射线衍射（XRD）和扫描电子显微镜（SEM）对样品的结构、形貌和光致发光光谱进行了分析。

Synthesis and Photoluminescence Properties of ZnO Nanomaterials

ZnO nanomaterials with different shapes such as nanocombs,nanobelts with ultralong nanocantilevers and na-nohelices were synthesized by thermal evaporation method.The growth mechanism and dynamics of ZnO nanomaterials were proposed by analyzing the influential factors on the microstructures of the products,such as deposition temperature,deposi-tion time pressure and so on.The obstained ZnO nanomaterials were structurelly and morphologically characterized by X-ray diffraction,scanning electron microscopy and the room-temperature photoluminescence of ZnO nanostructures were dis-cussed.