首次在室温条件下超声方法直接将金属Zn制备ZnO纳米颗粒薄膜.利用滚压振动磨机械研磨的Zn粉作为原料,采用独特的油相水相混合溶液作为分散液,超声分散打破软团聚使金属Zn纳米颗粒水解得到了分散性较好的纳米粒子,并且可以利用该纳米粒子简单地制备出均匀致密的ZnO纳米粒子薄膜.利用X射线粉末衍射仪(XRD)、透射电子显微镜(TEM)对产物进行了表征.结果表明,采用该方法可制得具有密排六方结构的ZnO纳米颗粒,并且该产物分散较好.原子力显微镜(AFM)、静电力显微镜(EFM)表明利用该纳米粒子制备的薄膜致密均匀,EFM显示纳米粒子表面电学性质有较大差异.探针台I-V测试显示不同原料Zn粉制备出的ZnO纳米颗粒薄膜可以获得不同导通电压从而获得不同的整流效果.该方法在室温条件下由Zn粉制备出ZnO纳米颗粒和薄膜,为制备不同维度ZnO纳米结构提供了新思路,同时也为制备、改善整流器件提供了创新和经济的途径.
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