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首页> 外文会议>International Conference on Physics of Materials and Nanotechnology >ZnO nanostructure and ZnO/CdS nanocomposite: Synthesis, surface morphology and optical properties
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ZnO nanostructure and ZnO/CdS nanocomposite: Synthesis, surface morphology and optical properties

机译：ZnO纳米结构和ZnO / Cds纳米复合材料：合成，表面形态和光学性质

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The nanostructures of ZnO and CdS, and ZnO/CdS nanocomposite were synthesized by a chemical method using zinc acetate dihydrate and cadmium acetate dihydrate as precursors. Water and ethanol mixture in 1:1 volume ratio was used as a solvent. The X-ray diffraction (XRD) studies showed the growth of hexagonal structured ZnO nanomaterials and cubic structured CdS nanomaterials. The grown ZnO/CdS nanostructures showed both hexagonal and cubic structures, indicating the formation of ZnO/CdS nanocomposite. The observation of FTIR peaks corresponding to Zn-O and Cd-S bonds confirms the formation of ZnO and CdS nanostructures. The surface morphological studies of the grown nanostructures were carried using Field emission scanning electron microscopy (FESEM) and the elemental composition was characterized by Energy-dispersive X-ray spectroscopy (EDX) in the FESEM system. FESEM images of pure ZnO showed hexagonal plate-like nano/microstructures and ZnO/CdS nanocomposite showed nano-flake like structures. Optical absorption properties and photoluminescence properties were studied by UV-Visible absorption and Photoluminescence (PL) spectroscopy, respectively. ZnO/CdS nanocomposite showed an enhanced absorption of light in the visible region, and hence, the ZnO/CdS nanocomposites may find suitable for photovoltaic and photocatalytic applications.
机译：通过使用乙酸锌二水合物和乙酸镉二水合物作为前体的化学方法合成ZnO和Cds和ZnO / Cds纳米复合材料的纳米结构。用水和乙醇混合物在1：1体积比中用作溶剂。 X射线衍射（XRD）研究表明六边形结构ZnO纳米材料和立方结构CDS纳米材料的生长。生长的ZnO / Cds纳米结构显示出六边形和立方结构，表明ZnO / Cds纳米复合材料的形成。观察对应于Zn-O和CD-S键的FTIR峰证实ZnO和Cds纳米结构的形成。使用现场发射扫描电子显微镜（FESEM）携带生长纳米结构的表面形态学研究，并且通过在FESEM系统中的能量分散X射线光谱（EDX）表征了元素组合物。纯ZnO的FeSEM图像显示六边形板状纳米/微结构，ZnO / Cds纳米复合材料显示纳米片状结构。通过UV可见的吸收和光致发光（PL）光谱法研究了光学吸收性能和光致发光性质。 ZnO / Cds纳米复合材料显示出可见区域中的光吸收，因此，ZnO / Cds纳米复合材料可用于光伏和光催化应用。

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