| 聚乙烯醇对ZnO纳米棒结构和光学性能的影响 |
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| 引用本文： | 吴克跃,蔡圣文.聚乙烯醇对ZnO纳米棒结构和光学性能的影响[J].人工晶体学报,2017,46(9):1838-1841. |
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| 作者姓名： | 吴克跃 蔡圣文 |
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| 作者单位： | 皖西学院电气与光电工程学院,六安 237012;皖西学院原子分子与光学应用研究中心,六安 237012;皖西学院电气与光电工程学院,六安,237012 |
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| 基金项目： | 安徽省教育厅重点项目(KJ2015A150) |
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| 摘 要： | 以六水硝酸锌为锌源,聚乙烯醇(PVA)为分散剂,制备了纳米氧化锌(ZnO).利用X射线衍射(XRD)和电子扫描电镜(SEM)对氧化锌的晶体结构、形貌和尺寸进行了表征.利用吸收光谱对氧化锌的吸收率进行了测量.结果表明,所制备的氧化锌属于六方纤锌矿单晶结构,呈棒状结构.通过改变PVA含量,氧化锌纳米棒的长度可以从400nm到2μm可调.吸收光谱表明,随着PVA含量增加,吸收光谱发生红移.讨论了PVA作用下氧化锌纳米棒的形成机理.
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| 关 键 词： | 氧化锌 聚乙烯醇 纳米棒 |
Effect of PVA on the Structure and Optical Properties of ZnO Nanorods |
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| WU Ke-yue,CAI Sheng-wen.Effect of PVA on the Structure and Optical Properties of ZnO Nanorods[J].Journal of Synthetic Crystals,2017,46(9):1838-1841. |
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| Authors: | WU Ke-yue CAI Sheng-wen |
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| Abstract: | ZnO nanorods were prepared from zinc nitrate hexahydrate and PVA by hydrothermal method . The characterizations of ZnO nanorods were carried out by X-ray diffraction ( XRD ) and scan electron microscope (SEM).Absorption of nanorods was measured by UV-Vis spectra.The results show that the ZnO nanostructures are rod-like crystal of hexagonal wurtzite structure .The length of ZnO nanorods increase from 400 nm to 2 μm with increasing the PVA concentrations .The absorption spectra show that the optical band gap red shift with increase PVA concentration . |
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| Keywords: | ZnO PVA nanorod |
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