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首页> 外文期刊>Journal of Sol-Gel Science and Technology >Structural, morphological and Raman scattering studies of pure and Ce-doped ZnO nanostructures elaborated by hydrothermal route using nonorganic precursor
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Structural, morphological and Raman scattering studies of pure and Ce-doped ZnO nanostructures elaborated by hydrothermal route using nonorganic precursor

机译：用非洲前体采用水热途径阐述纯净和Ce掺杂ZnO纳米结构的结构，形态和拉曼散射研究

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摘要

This study concerns the synthesis as well as structural and morphological characterizations of pure and Ce-doped ZnO nanorods synthesized by hydrothermal process. The synthesized nanorods were characterized in terms of their morphological, structural, compositional, and vibrational properties. XRD results indicated the pure wurtzite structure with good crystalline quality of the samples. The use of NaOH as caustic base favors the agglomeration of the rods to form flower-like nanostructures. EDAX measurements show Zn rich materials. FTIR measurements confirm that the synthesized nanorods are high purity. The Raman spectroscopy studies showed that Ce ions shift the vibrational modes toward lower frequencies. The peak related to E-2 (high) mode in pure ZnO (NaOH) is relatively intense compared with that of pure ZnO (KOH) and the opposite result is observed in Ce-doped ZnO. After the introduction of Ce atoms, the Raman peaks shifted and asymmetrically broadened due to anharmonic effects originating from quantum-phonon-effect confinement.
机译：该研究涉及通过水热法合成的纯和Ce掺杂ZnO纳米棒的合成以及结构和形态学特性。合成的纳米棒表征在其形态学，结构，组成和振动性能方面。 XRD结果表明纯紫硝石结构具有良好的样品晶体质。使用NaOH作为腐蚀性碱的用途有利于杆的附聚以形成花状纳米结构。 edax测量显示富含材料。 FTIR测量确认合成的纳米棒是高纯度。拉曼光谱研究表明，CE离子将振动模式移向较低频率。与纯ZnO（NaOH）中的E-2（高）模式相关的峰值与纯ZnO（KOH）相比是相对强烈的，并且在CE掺杂的ZnO中观察到相反的结果。在引入CE原子之后，由于源自量子 - 声子效应限制的无谐波效应，拉曼峰值偏移和不对称地扩大。

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