Liquid phase epitaxial growth and optical property of flower-like ZnO nanosheets on Zinc foil

Liquid phase epitaxial growth and optical property of flower-like ZnO nanosheets on Zinc foil
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锌箔上花状ZnO纳米片的液相外延生长及其光学性能

DOI:
10.1016/j.apsusc.2007.09.023
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发表时间:
2008-02
影响因子:
6.7
通讯作者:
Su, Yong
Su, Yong
中科院分区:
材料科学1区
文献类型:
--
作者:
Xin, Minjun;Zhang, Xinhua;Chen, Yiqing;Jia, Chong;Lv, Yousheng;Zhou, Qingtao;Kong, Weihai;Su, Yong

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通过简单的水热法在锌箔上合成了大规模花状 ZnO 纳米片。通过 X 射线光谱 (XRD)、场发射扫描电子显微镜 (FE-SEM) 和高分辨率透射电子显微镜 (HRTEM) 对它们的形貌和微观结构进行了表征和分析。合成的花状纳米片为六方相单晶,宽度为200-300nm,厚度为50nm。生长过程遵循液相外延生长机制。在这种方法中,ZnO 缓冲液用作花状 ZnO 纳米片生长的基质。纳米片的生长方向是ZnO的优先[0001]生长方向。样品的光致发光光谱仅在386nm处表现出尖锐而强烈的紫外发射,这表明锌箔上的花状ZnO纳米片具有良好的光学性能。
Large scale flower-like ZnO nanosheets have been synthesized on Zinc foil by a simple hydrothermal method. Their morphology and microstructures were characterized and analyzed by X-ray spectroscopy (XRD), field emission scanning electron microscopy (FE-SEM) and high-resolution transmission electron microscopy (HRTEM). The as-synthesized flower-like nanosheets are hexagonal phase single crystal with 200–300nm in width, 50nm in thickness. The growth process follows the liquid phase epitaxial growth mechanism. In this approach, the ZnO buffer is used as substrate for the growth of flower-like ZnO nanosheets. The growth direction of the nanosheets is the preferential [0001] growth direction of ZnO. The photoluminescence spectrum of the sample exhibits only a sharp and strong UV emission centered at 386nm, which indicates that the flower-like ZnO nanosheets on Zn foil are of good optical property.
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