ZnO微米钉的气相合成及其光学性质  

Vapor Deposition Synthesis and Optical Property of ZnO Micronails

作　　者：于丽杰[1] 曲凤玉[1] 刘文成[2] 蔡伟[2] 武祥[1] 

机构地区：[1]哈尔滨师范大学化学化工学院,黑龙江哈尔滨150025 [2]哈尔滨工业大学材料科学与工程学院,黑龙江哈尔滨150001

出　　处：《材料科学与工程学报》2010年第3期425-428,共4页Journal of Materials Science and Engineering

基　　金：哈尔滨师范大学博士启动基金资助项目(KGB200802);国家自然科学基金资助项目(20871037);黑龙江省自然科学基金资助项目(B2007-2);黑龙江科技厅科技研究资助项目(11531229)

摘　　要：用热蒸发气相沉积的方法合成了大量纤锌矿结构的ZnO微米钉。用X射线衍射仪,扫描电子显微镜,能谱仪和荧光分光光度计等测试手段对合成产物的结构、形貌和发光性质进行了详细研究。结果表明合成的微米钉尺寸均一,产量高,呈六棱柱形状,表面光滑。每个微米钉的顶部都有一个微米盘,微米钉的直径从顶部到根部逐渐变细,即从2微米逐渐减小到500纳米。同时对合成微米钉的生长机制进行了初步探讨。光致发光谱显示有三个发射峰,表明合成的ZnO微米钉结构在纳米光电子学领域有重要的应用价值。Large scale ZnO micronails with a hexagonal wurtzite structure were successfully synthesized by thermal vapor deposition at 1140 degree centigrade.X-ray diffractometry（XRD）,scanning electron microscopy（SEM）,X-ray energy-dispersive spectroscopy（EDS）and fluorescence spectrophotometry were utilized to study structure,morphology and optical property of as-grown products.Results demonstrated that the as-synthesized ZnO micronails with high yeild have uniform hexagonal shape and smooth surface.There was a hexagonal microplate on the top of the nail,The diameters of micronails become thin gradually from the top（2 μm）to the tip（500nm）.Growth mechanism of the ZnO micronails was proposed.Photoluminescence spectra showed that there are three emission peaks,which means that as-produced micronails have important applications in optoelectronics field.

关 键 词：ZNO 半导体材料 微米钉 光致发光 

分 类 号：O782.1[理学—晶体学]