当前位置:文档之家 > ZnO纳米棒及其3D组装结构的微波水热合成与表征

ZnO纳米棒及其3D组装结构的微波水热合成与表征

ZnO纳米棒及其3D组装结构的微波水热合成与表征

朱振峰;杨冬;魏娜;何作利;刘辉

【期刊名称】《材料导报》

【年(卷),期】2011(025)006

【摘要】以Zn(NO3)2·6H2O、NaOH和聚乙二醇(PEG,Mn=2000)为原料,采用微波水热法制备了结晶性能良好的ZnO纳米棒及其3D组装结构.利用EDS、XPS、SEM、TEM、FTIR对样品进行了表征,结合光致发光(PL)谱研究了样品的PL性能,并对ZnO纳米棒及其3D组装结构的生长机理进行了简要分析.结果表明,ZnO纳米棒的直径约为300nm,长径比约为3,3D组装结构的直径约为2μm,ZnO纳米棒及其3D组装结构的生长可能与PEG模板的导向作用有关.PL 谱表明样品在413~464nm内有很强的蓝光发射特性,这与样品的微观结构有很大关系.%Pure and fine crystallized ZnO nanorods and its 3D self-assembled microstructures were synthesized by microwave-assisted hydrothermal method using Zn(NO3 )2 · 6H2O, NaOH and PEG-2000 as raw materials. The as-prepared samples were studied by EDS, XPS, SEM, TEM, and FTIR, the photoluminescence property of the samples was investigated by PL spectroscopy. The grow-th mechanism of ZnO nanorods and its 3D self-assembled microstructures was also briefly analyzed. The results show that the average diameter and length of ZnO rods are about 300nm and 1μn, whereas the diameter of 3D self-assembled ZnO microstructures is about 2μm. The growth process of 3D self-assembled microstructures is possibly associated with the directing