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用热蒸发气相沉积的方法合成了大量纤锌矿结构的ZnO微米钉.用X射线衍射仪,扫描电子显微镜,能谱仪和荧光分光光度计等测试手段对合成产物的结构、形貌和发光性质进行了详细研究.结果表明合成的微米钉尺寸均一,产量高,呈六棱柱形状,表面光滑.每个微米钉的顶部都有一个微米盘,微米钉的直径从顶部到根部逐渐变细,即从2微米逐渐减小到500纳米.同时对合成微米钉的生长机制进行了初步探讨.光致发光谱显示有三个发射峰,表明合成的ZnO微米钉结构在纳米光电子学领域有重要的应用价值.

参考文献

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