Self-organized growth of ZnO single crystal columns array

被引:26
作者
Sun, XM
Deng, ZX
Li, YD [1 ]
机构
[1] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China
[2] Tsinghua Univ, China Minist Educ, Key Lab Atom & Mol Nanosci, Beijing 100084, Peoples R China
基金
中国国家自然科学基金;
关键词
single crystal column array; evaporation oxidation methods; XRD;
D O I
10.1016/S0254-0584(02)00523-0
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Freestanding high-oriented single crystal ZnO columns array were prepared at the temperature range of 920-980 degreesC by a simple two-step evaporation oxidation method without template introduced. The effects of releasing mode of zinc vapor to formation of ZnO columns array were evidenced. X-ray diffraction (XRD), scanning electron microscope (SEM), and photoluminescence (PL) were used to characterize the morphology, structure and optical property of the sample. A possible growth mechanism was proposed and the conversion from ZnO to ZnS was realized by a high-temperature sulfuration with columns array maintained. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:366 / 370
页数:5
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