ZnSe纳米棒的水热法合成及发光性能研究

Study on Synthesis and Properties of ZnSe Nanorods via Hydrothermal Process

以氢氧化钠、单质硒粉与4种不同锌盐为起始原料、EDTA为软模板剂,在190℃水热条件下合成了ZnSe半导体材料。采用X-射线粉末衍射(XRD)、扫描电镜(SEM)、X-射线光电子能谱(XPS)、荧光光谱(FS)、紫外可见吸收光谱(UV-Vis)等测试手段对所得样品的物相结构、化学组成、形貌和性能进行了测试。结果表明,所得ZnSe为立方闪锌矿型结构且纯度较高;锌源对产物的形貌具有一定的影响;合成的粉体在紫外区有强的吸收峰,具有良好的光学性能。

Using sodium hydroxide, selenium（Se） powders, four different kinds of zinc salt as starting materials, ZnSe nanorods had been successfully synthesized via hydrothermal process in the presence of ethylenediamine tetraacetic acid（EDTA） as soft-template agent. X-ray diffraction（XRD）, scan electron microscopy （SEM）, X-ray photoelectron spectroscopy（XPS）, fluorescence spectroscopy（FS） and UV-visible absorption （UV-Vis） techniques were used to test the morphology, composition and properties of the as-synthesized samples. The XRD and XPS results showed that ZnSe possessed cubic sphalerite structure and high purity; Zinc salt had great effect on morphology of the samples; FS result indicated that the as-synthesized samples had a strong absorption peak at 358 nm and good optical properties.