不同形貌氧化锌纳米棒的CVD法制备及生长机制讨论

Synthesise and Growing Mechanism of ZnO Nanorodes of Different Morphologies via Chemical Vapor Deposition

采用CVD技术制备了不同形貌的ZnO纳米棒.并利用XRD、SEM、能谱仪、荧光光谱仪对比研究了其表面结构、成份、相结构及光致发光特性.结果表明,样品形貌随着沉积位置的变化而变化,其生长遵循金属自催化机制.并且表明离子化氧空位的存在有利于ZnO的绿光发射.

ZnO nanowires of different morphologies have been grown on Si （111） substrates by CVD, The structure and morphology of ZnO nanowires had been studied by X-ray diffraction （XRD） and scanning electron microscope （SEM）. the result show that the morphologies vary with the position of substrates regularly. Respectively. The growth mechanism of ZnO nanorods has also been discussed.