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无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

水热法制备氧化锌阵列及其形貌控制

李必慧, 唐一文, 张新, 姜云, 罗利娟, 贾志勇

  

  1. 华中师范大学物理科学与技术学院, 武汉 430079

  • 收稿日期:2006-06-28 修回日期:2006-09-11 出版日期:2007-05-20 网络出版日期:2007-05-20

Hydrothermal Synthesis of ZnO Nanorod Arrays and Their Morphology Control

LI Bi-Hui, TANG Yi-Wen, ZHANG Xin, JIANG Yun, LUO Li-Juan, JIA Zhi-Yong   

  1. College of Physical Science and Technology, Central China Normal University, Wuhan 430079, China

  • Received:2006-06-28 Revised:2006-09-11 Published:2007-05-20 Online:2007-05-20

PDF (PC)

2660

被引次数

59

摘要： 低温条件下, 采用水热法, 通过控制前驱溶液的pH值, 在预先镀有ZnO纳米膜的导电玻璃衬底上制备了形貌各异的ZnO阵列, 用X射线衍射(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)、高分辨透射电子显微镜(HRTEM)和紫外-可见分光光度计等分析手段对ZnO纳米棒的结构和形貌进行了表征. 同时还对不同形貌阵列的形成机理进行探讨. 结果表明, 所制ZnO纳米棒为单晶, 沿c轴择优生长. 在pH值为10.5左右时, 能得到取向性好、直径均匀(d~nm)的ZnO纳米棒阵列. 光学测试表明, 在可见光区透光度超过80%, 禁带宽度约为3.25eV.

关键词: 水热法, 氧化锌阵列, pH值, 形貌

Abstract:

By using the hydrothermal method, the ZnO nanorod arrays with different morphologies were synthesized on ZnO nanoparticle-coated transparent conductivity glasses (TCO) at low temperatures by controlling the pH value of precursory solutions. The ZnO nanorod arrays were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), high-resolution transmission electron microscope (HRTEM) and ultraviolet-visible spectrophotometer (UV-Vis). Furthermore, the mechanism was primary discussed. The results show that the ZnO nanorod is a single crystal and it grows along c axis. When the pH value is about 10.5, the array is well-aligned and the diameter of the nanorod is uniform. Optical characterization shows that the optical transmittance of the film is higher than 80% in the visible wavelength and its band gap is about 3.25eV.

Key words: hydrothermal, ZnO array, pH value, morphology

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