| 具有中空分级结构的花菜状ZnO制备及发光性能研究 |
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| 引用本文： | 毛广秀.具有中空分级结构的花菜状ZnO制备及发光性能研究[J].淮阴师范学院学报(自然科学版),2012(2):158-161. |
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| 作者姓名： | 毛广秀 |
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| 作者单位： | 淮阴师范学院化学化工学院 |
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| 摘 要： | 以乙酸锌、氨水和海藻酸钠为原料,采用水热法合成了具有分级结构的中空花菜状ZnO.利用SEM、XRD对样品进行了表征,并研究了样品的光致发光性能.结果表明:空分级结构花菜状ZnO由直径约为50 nm纳米棒组装而成的,组装体的直径约为1μm,为六角纤锌矿结构;海藻酸钠的存在对形成花菜状结构起着关键性的作用;室温光致发光光谱表明样品在380 nm处存在弱的紫外发光峰,而在可见光区(600 nm左右)有很强的发光峰.
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| 关 键 词： | ZnO 分级结构 中空 光致发光 |
Synthesis and Optical Properties of Hierarchically Broccoli-like ZnO Hollow Structures |
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| MAO Guang-xiu.Synthesis and Optical Properties of Hierarchically Broccoli-like ZnO Hollow Structures[J].Journal of Huaiyin Teachers College(Natrual Science Edition),2012(2):158-161. |
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| Authors: | MAO Guang-xiu |
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| Institution: | MAO Guang-xiu(Department of Chemistry and Chemical Engineering,Huaiyin Normal Universtiy,Huaian Jiangsu 223300,China) |
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| Abstract: | Hierarchically broccoli-like ZnO hollow structures were synthesized by hydrothermal method using zinc acetate,ammonia and sodium alginate as raw materials.The as-prepared samples were characterized by SEM and XRD,and the photoluminence property were investigated by PL spectroscopy.The results show that the hierarchically broccoli-like ZnO were assembled by many short nanorods,and the diameter of ZnO nanorods and the superstructures are about 50 nm and 1 μm respectively.The presence of sodium alginate was the key factors to form broccoli-like structure.Photoluminescence spectrum exhibited a weak near band edge emission centered at 380 nm,and strong defect luminescence around 600 nm. |
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| Keywords: | zinc oxide hierarchical structures hollow photoluminescence |
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