纳米ZnO的燃烧法制备和光谱特性  

Combustion Synthesis and Luminescent Properties of Nanocrystalline ZnO

作　　者：徐美[1] 张慰萍[1] 尹民[1] 楼立人[2] 夏上达[2] 

机构地区：[1]中国科学技术大学结构分析重点实验室,合肥230026 [2]中国科学技术大学物理系,合肥230026

出　　处：《无机材料学报》2003年第4期933-936,共4页Journal of Inorganic Materials

基　　金：安徽省自然科学基金(00046106)

摘　　要：首次以硝酸锌和甘氨酸为原料,用燃烧合成法制备了纳米ZnO粉体。对材料进行了电镜和比表面积的测量,结果显示,产物粒径分布均匀,约为20nm。在阴极射线激发下,样品有较强的发光。研究发现,燃料与氧化剂的比例的变化将导致材料在发光峰位置及其相对强度上的明显差异,对此现象给出了合理的解释。Nanocrystalline ZnO was prepared by the combustion synthesis method for the first time. XRD results show that the samples crystallize in the same structure as bulk ZnO material, with particle size of about 20nm. Fluorescence properties were also investigated. Apart from the intrinsic CV transition peaked at 390 nm, green and red emission bands also appear in the cathodluminescence spectra, and their relative intensity changes with the ratio of fuel and oxidant.

关 键 词：燃烧合成 纳米ZNO 阴极射线发光 

分 类 号：TB383[一般工业技术—材料科学与工程]