气相法控制生长四脚状氧化锌纳米针的研究  

Controllable Preparation of Tetrapod-like ZnO Nanoneedles by Chemical Vapor Deposition

作　　者：马立安[1] 胡利勤[2] 蔡曙光[1] 

机构地区：[1]福建工程学院材料科学与工程系,福州350108 [2]福州大学光电显示技术研究所,福州350002

出　　处：《徐州工程学院学报（自然科学版）》2010年第2期6-10,共5页Journal of Xuzhou Institute of Technology(Natural Sciences Edition)

基　　金：福建省科技重大专项资助项目(2006HZ0002);福建省青年基金项目(E0300075);福建工程学院科研项目(GY-Z09067;GY-Z09061)

摘　　要：以H2O2陈化处理的锌粉为原料,采用化学气相沉积法通过控制载气中氧的含量、反应时间、沉积温度等参数条件,实现了四角状氧化锌纳米针的控制生长.借助于扫描电镜、X线衍射和X线能谱仪对不同实验条件下制备的样品进行形貌和结构的细致表征.实验结果表明,在高温气相反应中,锌蒸气的超饱和是控制四角氧化锌纳米结构初始形核孕育和形貌尺寸长大的关键因素.在此基础上,对氧化锌纳米结构的生长机理进行了探讨.Using Zn powder aged by H2O2 solution as the raw material, Tetrapod-like ZnO nanoneedles with controllable morphology and size were successfully prepared by chemical vapor deposition. Samples were characterized by scanning electron microscopy （SEM） and X-ray diffraction （XRD）. Results showed that supersaturation of zinc vapor are crucial for gestating these nuclei. ZnO nanostructures morphology can be altered by adjusting the proportion of oxygen in the carrier gas, reaction temperature or deposition time. We have also discussed the growth mechanism of Tetrapod-like ZnO nanostructure.

关 键 词：纳米结构 晶体生长 氧化锌 

分 类 号：TB383[一般工业技术—材料科学与工程]