高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

利用浮区法在高氧压下生长ZnO晶须

郭星原1, 于英宁2, 许大鹏1, 丁战辉1, 苏文辉1,3,4   

    1. 吉林大学物理学院, 长春 130023;
    2. 中国科学院长春应用化学研究所, 长春 130022;
    3. 哈尔滨工业大学凝聚态科学与技术研究中心, 哈尔滨 150001;
    4. 中国科学院国际材料物理中心, 沈阳 110015
  • 收稿日期:2006-02-08 修回日期:1900-01-01 出版日期:2006-10-10 发布日期:2006-10-10
  • 通讯作者: 许大鹏

Growth of ZnO(Wurtzite) Whiskers Using the Floating Zone Method at High Oxygen Pressure

GUO Xing-Yuan1, YU Ying-Ning2, XU Da-Peng1, DING Zhan-Hui1, SU Wen-Hui1,3,4   

    1. College of Physics, Jilin University, Changchun 130023, China;
    2. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;
    3. Center for the Condensed-Matter Science and Technology, Harbin Institute of Technology, Harbin 150001, China;
    4. International Center for Materials Physics, Chinese Academy of Sciences, Shenyang 110015, China
  • Received:2006-02-08 Revised:1900-01-01 Online:2006-10-10 Published:2006-10-10
  • Contact: XU Da-Peng

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被引次数

7

摘要： 采用浮区法在高温高氧压下生长出大尺寸的ZnO晶须. X射线衍射和拉曼光谱分析结果表明, 生长的ZnO晶须结晶良好, 具有六方结构, 沿(001)方向有明显的择优生长取向. 光致发光光谱测量结果表明, 晶须在室温下有较高的紫外光致发光效率和较低的缺陷, 生长时选择大于0.3 MPa的氧压对提高IUV/Igreen有益.

关键词: ZnO, 晶须, X射线衍射, Raman光谱, 光致发光

Abstract:

ZnO(wurtzite) whiskers were grown by the floating zone method by using ZnO powder as the starting materials at various oxygen pressures. The as-grown samples were characterized by X-ray diffraction and Raman scattering, and their characteristic peaks show that the as-grown ZnO whiskers have an excellent hexagonal wurtzite phase and (001) orientation. The photoluminescence properties of the as-grown ZnO whiskers were measured by using Nd∶YAG laser(266 nm), and the influence of oxygen pressure on the crystal structure and defects was investigated. It is found that the presence of excessive oxygen reduced the defects in the as-grown ZnO whiskers, and the optimum oxygen pressure may be 0.3 MPa, which is favorable to the growth of ZnO whiskers.

Key words: ZnO, Whiskers, X-ray diffraction, Raman scattering, Photoluminescence

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