化学浴沉积法制备ZnO纳米棒阵列:种子层溶胶浓度的影响

E. Pourshaban , H. Abdizadeh , M.R. Golobostanfard
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引用次数: 29

摘要

一维氧化锌由于其优异的性能在电子、光电、电化学和机电器件等领域有着广泛的应用,是最有前途的纳米结构之一。采用化学浴沉积法制备了氧化锌纳米棒。在影响化学浴沉积方法的众多参数中,种子层的性质对ZnO纳米棒的结构、形态和光学特性的控制至关重要。本研究考察了种子层土壤浓度的影响。以二水合乙酸锌(ZAD)为前体,三乙胺为添加剂,1-丙醇为酒精溶剂提供合成种子层的溶胶。x射线衍射图表明,ZnO种子层和纳米棒均具有六方纤锌矿结构。随着ZAD浓度的增加,沿(002)极表面的择优取向增强。场发射扫描电镜图像显示,ZnO纳米棒的形态特性与种层溶胶浓度密切相关。随着ZAD浓度的增加,ZnO纳米棒的排列增强。此外,漫反射光谱分析表明,ZnO纳米棒的透射率随ZnO纳米棒密度的增加而降低。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
ZnO Nanorods Array Synthesized by Chemical Bath Deposition: Effect of Seed Layer Sol Concentration

One-dimensional Zinc oxide is among the most promising nanostructures due to their exceptional properties in wide range of applications such as electronic, optoelectronic, electrochemical, and electromechanical devices. The ZnO nanorods are synthesized by the means of chemical bath deposition. Among all of the parameters affecting chemical bath deposition method, the seed layer properties are vitally important to control the structural, morphological, and optical features of the ZnO nanorods. In this study the effect of seed layer sol concentration is investigated. Zinc acetate dihydrate (ZAD) as precursor, triethylamine as an additive, and 1-propanol as an alcoholic solvent are used to provide the sol to synthesize the seed layers. X-ray diffraction patterns show that all the ZnO seed layers and nanorods have hexagonal wurtzite structure. The preferred orientation along (002) polar surface is enhanced by increasing the ZAD concentration. Field emission scanning electron microscope images show that the morphological properties of ZnO nanorods are strongly depended on the seed layer sol concentration. As the ZAD concentration increases, the alignment of ZnO nanorods is enhanced. Furthermore, the diffuse reflectance spectroscopy analysis shows that the transmittance of nanorods is decreased by increasing the density of the ZnO nanorods.

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