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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Synthesis, microstructural characterization and optical properties of CuO nanorods and nanowires obtained by aerosol assisted CVD
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Synthesis, microstructural characterization and optical properties of CuO nanorods and nanowires obtained by aerosol assisted CVD

机译：气溶胶辅助CVD法制得的CuO纳米棒和纳米线的合成，微观结构表征和光学性质

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摘要

Copper oxide is a particularly interesting material because it presents photovoltaic, electrochemical and catalytic properties. Its unique properties are very important in the area of nanotechnology and may be an advantage because these nanomaterials can be applied in the design and manufacture of nanosensors, photocatalysis area, nanolasers switches and transistors. Nowadays one-dimensional nanostructures as nanorods, nanowires, etc., have generated a great importance and have received considerable attention and study due to their unique physical and chemical properties. In this work we report the synthesis, microstructural characterization and optical properties of CuO nanorods and nanowires grown by aerosol assisted chemical vapor deposition onto a CuO, ZnO and TiO2 thin film covered and bare borosilicate glass substrate. Concentration of the precursor solution and carrier gas flux were previously optimized and fixed at 0.1 mol dm(-3) and 5 L min(-1), respectively. Other deposition parameters such as substrate temperature, as well the carrier gas velocity and deposition time were varied from 623 to 973 K, 0.88 to 1.77 m s(-1) and 11 to 16 min, respectively. Their influence on the morphology, microstructure and optical properties of the nanorods and nanowires were analyzed. The crystalline structure of the materials was characterized by grazing incidence X-ray diffraction; results indicate the presence of the tenorite phase. Surface morphology and microstructure were studied by field emission scanning electron microscopy, and high resolution transmission electron microscopy. Optical properties in the UV-visible-NIR interval were analyzed from reflectance and transmittance spectra. (C) 2014 Elsevier B.V. All rights reserved.
机译：氧化铜是一种特别令人感兴趣的材料，因为它具有光电，电化学和催化性能。它的独特性能在纳米技术领域非常重要，并且可能是一个优势，因为这些纳米材料可用于纳米传感器，光催化领域，纳米激光开关和晶体管的设计和制造。如今，一维纳米结构，如纳米棒，纳米线等，由于其独特的物理和化学性质而引起了极大的关注，并受到了广泛的关注和研究。在这项工作中，我们报告了通过气溶胶辅助化学气相沉积法将CuO纳米棒和纳米线生长到CuO，ZnO和TiO2薄膜覆盖且裸露的硼硅酸盐玻璃衬底上而形成的合成，微观结构表征和光学性质。预先优化了前体溶液的浓度和载气通量，并将其分别固定在0.1 mol dm（-3）和5 L min（-1）上。其他沉积参数（例如衬底温度，载气速度和沉积时间）分别从623到973 K，0.88到1.77 m s（-1）和11到16 min不等。分析了它们对纳米棒和纳米线的形态，微观结构和光学性质的影响。材料的晶体结构通过掠入射X射线衍射表征。结果表明存在辉长石相。通过场发射扫描电子显微镜和高分辨率透射电子显微镜研究了表面形态和微观结构。从反射光谱和透射光谱分析了UV-可见-NIR间隔中的光学性质。 （C）2014 Elsevier B.V.保留所有权利。

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