Urchin-like ZnO nanostructures: Synthesis, characterization and optical properties

被引：10
|
作者：
Zhu, Yunqing [1 ]
Chen, Yiqing [1 ]
Zhang, Xinhua [1 ]
Chen, Qiong [1 ]
Shao, Yan [1 ]
机构：
[1] Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Anhui, Peoples R China
来源：
MATERIALS LETTERS | 2009年 / 63卷 / 15期
基金：
中国国家自然科学基金;
关键词：
Deposition; Nanomaterials; Luminescence;
D O I：
10.1016/j.matlet.2009.02.059
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Urchin-like ZnO nanostructures have been synthesized by a two-step thermal evaporation method. The product was characterized with scanning electron microscopy. X-ray powder diffraction, transmission electron microscopy, and spectrofluorometry. The results of characterization revealed that the urchin-like ZnO nanostructure consists of a spherical metallic Zn core and wurtzite ZnO nanowires growing on the surface of the ZnO buffer which covers the Zn core and the growth directions of wurtzite ZnO nanowires are along < 10-10 >. According to the analysis on these results, a possible two-step growth mechanism was proposed to explain the formation of the urchin-like ZnO nanostructures. The fluorescence-emission mechanisms were also discussed. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：1242 / 1244
页数：3
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