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通过纯锌粉蒸发,在600℃无催化条件下成功制备了高质量的不同形貌的ZnO纳米带.该制备方法中控制产物形貌和尺寸的关键是氧、氩及锌蒸气的流速及分压.扫描电镜及高分辩透射电镜观察显示,氧化锌纳米带具有规整光滑及齿状等不同形貌,且皆为单晶,其生长由固-气机理控制.室温光致发光谱表明,齿状氧化锌纳米带在390nm附近形成紫外发射峰;在455～495nm时,形成绿光发射峰,该处由4个次级发射峰组成.
Through the pure zinc powder evaporation, high-quality ZnO nanobelts with different morphologies were successfully prepared at 600 ℃ without catalyst.The key to control the morphology and size of the product was the flow rate of oxygen, argon and zinc vapors The results of scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (TEM) showed that the ZnO nanoribbons had different shapes, such as regular smooth and dentate, and all were single crystal.The growth was controlled by the solid-gas mechanism.The photoluminescence at room temperature Like ZnO nanoribbons form an ultraviolet emission peak near 390 nm; at 455 to 495 nm, a green emission peak is formed, which consists of four secondary emission peaks.