一维纳米氧化锌的场发射性能和光学性能研究  

On the field-emission properties and optical properties of the one-dimensional ZnO nanostructures

作　　者：朱涛[1] 吴芳[2] 张献图[1] 

机构地区：[1]周口师范学院物理与电子工程系,河南周口466001 [2]河南教育学院,河南郑州450000

出　　处：《真空》2011年第2期44-46,共3页Vacuum

摘　　要：采用真空热蒸发法在不同的制备温度下,制备出了准阵列状和阵列状一维纳米ZnO结构。并利用X射线衍射、扫描电子显微镜、场发射测试仪、光致发光谱对ZnO纳米材料的结晶质量、形貌及场发射性能进行了分析研究。阵列状纳米氧化锌有较明显的择优生长取向。准阵列状纳米氧化锌的场发射性能优于阵列状纳米氧化锌。并通过对PL谱的对比分析得出,准阵列状纳米结构的结晶质量较好,阵列状纳米结构中存在的缺陷较多。The quasi-array and array like one-dimensional ZnO nanostructures were prepared by vacuum thermal evaporation at different temperatures.The crystalline quality,morphology,field-emission properties and optical properties were analyzed by the X-ray diffraction,SEM,field emission tester and photoluminescence spectrum,respectively.The results showed that the field-emission properties of the quasi-array like ZnO nanostructures are better than those of the array like ones which grow in a preferred orientation obviously.And the comparison of their PL spectra showed that the crystalline quality of the quasi-array like ZnO nanostructures are better,while there are lots of defects in the array-like ones.

关 键 词：氧化锌 热蒸发 场发射性能 光学性能 

分 类 号：TB43[一般工业技术] O484[理学—固体物理]