Synthesis and characterization of flower-like ZnO nanostructures via flower-like ZnOHF intermediate
Synthesis and characterization of flower-like ZnO nanostructures via flower-like ZnOHF intermediate
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DOI：
10.1016/j.matlet.2014.04.071
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发表时间：
2014-07
影响因子：
3
通讯作者：
X. Gong;Li Yu;Gui‐Li Tian;Lulu Wang;Yufang Zhao;Weijie Mai;Wenzhong Wang
中科院分区：
文献类型：
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作者：
X. Gong;Li Yu;Gui‐Li Tian;Lulu Wang;Yufang Zhao;Weijie Mai;Wenzhong Wang
采用简单的水热方法对花状氧化锌进行了热处理，得到了花状氧化锌纳米结构。这些实验可以在温和的条件下以廉价和环保的方式进行。用扫描电子显微镜、X射线衍射仪和透射电子显微镜对制备的氧化锌纳米结构的表面形貌和微观结构进行了表征。用室温光致发光(PL)光谱研究了所制备的花状氧化锌纳米结构的光学性质。荧光光谱证实了氧化锌花状纳米结构在紫外区以382 nm为中心的发射带，这来自于氧化锌的特征发射。同时，较弱而宽广的发射峰集中在约540 nm处，这可能来自于氧化锌纳米结构中存在的缺陷。
Flower-like ZnO nanostructures were obtained by annealing flower-like ZnOHF by a simple hydrothermal route. The experiments could be carried out under mild conditions in an inexpensive and environmental-friendly way. The surface morphology and microstructure of these as-prepared ZnO nanostructures were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and transmission electron microscopy (TEM). The optical property of the prepared flower-like ZnO nanostructures was investigated by room-temperature photoluminescence (PL) spectra as well. The PL spectra confirmed that ZnO flower-like nanostructures exhibited emission band centered at 382 nm in UV region, which came from the characteristic emission of ZnO. Meanwhile, weak and broad emission peak centered at about 540 nm, which may be come from the defects existed in ZnO nanostructures.