阵列纳米ZnO的一种新颖的制备方法及其光致发光特性研究  

New method of synthesis aligned nano-ZnO and its photoluminescence property

作　　者：程文德[1] 吴萍[1] 鄢剑 陈蓓[1] 肖潭[1] 

机构地区：[1]汕头大学物理系 [2]浠水县实验高中,湖北黄冈438200

出　　处：《功能材料》2007年第6期882-884,共3页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(10572079);汕头大学研究与发展基金资助项目(130-934062)

摘　　要：将锌粉、炭粉和氧化锌粉末混合,用简单的热蒸发方法一步就合成了大量的尖锥状纳米ZnO阵列,该方法克服了其它制备方法需要先单独制备催化剂再合成ZnO的缺点而且得到产物不含杂质。用SEM、EDX、XRD和PL对样品进行了形貌、结构和发光特性分析。结果表明,生成的锥状阵列纳米ZnO为六方纤锌矿结构,产物中氧的含量不足,初步探讨了阵列纳米ZnO结构的生长机理和光致发光性质。Aligned cone-shaped nano-ZnO structure has been synthesized by thermal evaporation of mixtures of Zn powder, C powder and ZnO powder through one step, which overcomes the disadvantage of the previous methods through two steps： preparation catalyst first and then synthesis of nano-ZnO. Scanning electron microscope （SEM） coupled with energy dispersive X-ray spectrometry （EDX） and X-ray diffraction （XRD） were employed to determine the morphology, the composition and crystal structure of the product, respectively. The product is pure nano-ZnO with the insufficiency of O atom. The synthesized nano-ZnO is hexagonal wurtzite crystal structure. The growth mechanism and the photoluminescence property of the aligned nano-ZnO are discussed.

关 键 词：热蒸发 阵列纳米ZnO 光致发光 

分 类 号：O649[理学—物理化学]