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The Roles of Polyvinyl Alcohol (PVA) as the Capping Agent on the Polyol Method for Synthesizing Silver Nanowires

机译:聚乙烯醇(PVA)作为封端剂在多元醇合成银纳米线方法中的作用

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摘要

We report our investigation of roles of polyvinyl alcohol (PVA) as a high- performance capping agent in synthesizing silver nanowires (AgNWs) using polyol method. For this purpose, we varied the concentration of silver nitrate (AgNO3), from 0.3 M to 1.0 M, and molar ratios of [PVA: AgNO3] from 2 to 6. The UV-vis spectra show the AgNWs growth optimally at a molar ratio of 4.5 with the absorbance peaks of 378 nm and 380 nm. Meanwhile, from XRD patterns, it was found that the crystal structure of the AgNWs can be identified as a face- centered cubic (fcc) with a lattice constant according to the spacing distance between the {111} planes of 4.087 angstrom. Finally, scanning electron microscopy (SEM) and transmission electron microscopy TEM images show the diameter and length of the AgNRs are 150 to 230 nm and 50 to 120 mu m, respectively. These results show that the AgNWs synthesized using PVA having a long size.
机译:我们报告了我们对聚乙烯醇(PVA)作为高性能封端剂在使用多元醇法合成银纳米线(AgNWs)中的作用的研究。为此,我们将硝酸银(AgNO3)的浓度从0.3 M更改为1.0 M,将[PVA:AgNO3]的摩尔比从2更改为6。UV-vis光谱显示,在摩尔比下,AgNWs的生长最佳。 4.5的吸收峰分别为378 nm和380 nm。同时,从XRD图谱发现,根据{111}面之间的间距为4.087埃,可以将AgNW的晶体结构识别为具有晶格常数的面心立方(fcc)。最后,扫描电子显微镜(SEM)和透射电子显微镜TEM图像显示AgNR的直径和长度分别为150至230 nm和50至120μm。这些结果表明,使用PVA合成的AgNW具有长尺寸。

著录项

  • 来源
    《Journal of nano research》 |2017年第2017期|174-180|共7页
  • 作者单位

    Univ Lampung, Dept Phys, Bandar Lampung, Indonesia;

    Univ Gadjah Mada, Dept Phys, Yogyakarta 55281, Indonesia|Univ Gadjah Mada, Nanomat Res Grp, Yogyakarta 55281, Indonesia;

    Univ Gadjah Mada, Dept Phys, Yogyakarta 55281, Indonesia|Univ Gadjah Mada, Nanomat Res Grp, Yogyakarta 55281, Indonesia;

    Univ Gadjah Mada, Dept Phys, Yogyakarta 55281, Indonesia|Univ Gadjah Mada, Nanomat Res Grp, Yogyakarta 55281, Indonesia;

    Singapore Inst Mfg Technol, 71 Nanyang Dr, Singapore, Singapore;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    silver nanowires; silver nitrate; polyvinyl alcohol; capping agent; transparent electrode;

    机译:纳米银线;硝酸银;聚乙烯醇;封端剂;透明电极;

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