| ZnO/ZnS核/壳纳米结构的形态及其演变模式 |
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| 引用本文： | 段文静,郭奇花,阳洪超,郑东,吴正龙,王引书.ZnO/ZnS核/壳纳米结构的形态及其演变模式[J].半导体技术,2010,35(12):1162-1166. |
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| 作者姓名： | 段文静 郭奇花 阳洪超 郑东 吴正龙 王引书 |
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| 作者单位： | 北京师范大学物理系,北京,100875;北京师范大学分析测试中心,北京,100875 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 用两步生长的方法在醋酸锌和六亚甲基四胺水溶液中生长ZnO纳米棒阵列,然后以ZnO纳米棒阵列为模板,在Na2S水溶液中硫化0.5～6 h形成ZnO/ZnS纳米结构.用XRD,SEM和TEM表征了ZnO/ZnS核/壳纳米结构的晶体结构、表面形貌.研究了ZnO/ZnS核/壳纳米结构的形态及其转变的模式.在硫化过程中,ZnO首先形成ZnO/ZnS核/壳纳米棒,随着硫化程度的增强,核/壳结构顶部出现空洞,空洞扩展形成管状结构,进一步硫化,管状结构坍塌.硫化形成的ZnO/ZnS结构的形态不仅依赖于初始纳米棒的直径大小和硫化时间的长短,还依赖于纳米棒的分布密度.
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| 关 键 词： | ZnO/ZnS核/壳纳米结构 直径大小 分布密度 形态转变 演变模式 |
Morphology and Morphology Evolution Model of ZnO/ZnS Core/Shell Nanostructures |
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| Duan Wenjing,Guo Qihua,Yang Hongchao,Zheng Dong,Wu Zhenglong,Wang Yinshu.Morphology and Morphology Evolution Model of ZnO/ZnS Core/Shell Nanostructures[J].Semiconductor Technology,2010,35(12):1162-1166. |
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| Authors: | Duan Wenjing Guo Qihua Yang Hongchao Zheng Dong Wu Zhenglong Wang Yinshu |
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| Affiliation: | Duan Wenjinga,Guo Qihuaa,Yang Hongchaoa,Zheng Dongb,Wu Zhenglongb,Wang Yinshua(a.Department of Physics,b.Analytic and Testing Center,Beijing Normal University,Beijing 100875,China) |
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| Abstract: | ZnO nanorod arrays were grown on the quartz glass substrates in solution of zinc acetate and hexamethylenetetramine by two-step growth method.ZnO/ZnS core/shell nanostructures were grown by sulfurizing ZnO nanorod arrays in the Na2S aqueous solution for 0.5-6 hours.The crystal structure and morphology of the ZnO/ZnS nanostructures were characterized by X-ray diffraction,scan electron microscope and transmission electron microscopy.The variation model of ZnO/ZnS core/shell nanostructure morphology was studie... |
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| Keywords: | ZnO/ZnS core/shell nanostructure nanorod diameter distribution density variation of morphology variation model |
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