以Zn(Ac)2、NaOH为初始原料,采用水热法在较低温度下合成了由纳米棒紧聚而成的花状ZnO微/纳米结构.通过X射线衍射(XRD)、扫描电镜(SEM)、光致发光谱(PL)对样品进行了表征和分析,讨论了反应温度、反应时间对样品物相和形貌的影响,分析了其生长机制.XRD和SEM测试结果表明,ZnO纳米晶为六方纤锌矿结构,反应温度和时间对产物晶相及形貌有重要影响.室温下PL谱显示,样品在346 nm和384 nm处有较强的紫外发射,在450 nm和468 nm处有较弱的蓝光发射,在475～650 nm出现强而宽的可见光发射带.该研究为探讨ZnO微/纳米材料的制备技术及在发光方面的应用提供了可行的方法.
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