Abstract This work outlines the synthesis of pure CdO and Ni-CdO nanoparticles with different weight percentage (2, 4, 6, 8 and 10 wt%) of Ni2+ through microwave combustion route using cadmium nitrate and nickel nitrate as precursors and ethylene glycol as solvent. The morphological, optical and electrical properties of the material obtained after calcination was systematically characterized for various physicochemical properties and photoconductivity characteristics. The X-ray diffraction study of the synthesized and calcinated CdO and Ni-CdO nanoparticles confirms the existence of cubic phase with no impurity peaks (up to 4 wt%). The average crystalline size is found to be in the range of 41–47 nm based on Debye-Scherrer formula calculation. The scanning electron micrograph reveals that the synthesized samples are prismatic to spherical shaped and also it is observed that, the porosity enhances with increase in the concentration of Ni2+ ions. Energy dispersive X-ray micrographs show the existence of Ni2+ in the Ni-CdO samples. The optical bandgaps of synthesized samples are determined by Tauc's plot. Transmission electron microscope images are in accordance with the surface morphologies of scanning electron micrographs. The current-voltage characteristic (I–V) of CdO and Ni-CdO films shows that the photo current of CdO and Ni-CdO films is greater in UV-light as compared to dark.

中文翻译：

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微波燃烧法制备Ni2+掺杂CdO纳米颗粒的掺杂、结构、光学和电学性能

摘要 本工作概述了以硝酸镉和硝酸镍为前驱体，乙二醇为溶剂，通过微波燃烧途径合成具有不同重量百分比（2、4、6、8 和 10 wt%）Ni2+ 的纯 CdO 和 Ni-CdO 纳米颗粒。 . 对煅烧后获得的材料的形态、光学和电学性质进行了系统表征，包括各种理化性质和光电导特性。合成和煅烧的 CdO 和 Ni-CdO 纳米颗粒的 X 射线衍射研究证实了立方相的存在，没有杂质峰（高达 4 wt%）。根据 Debye-Scherrer 公式计算，发现平均晶体尺寸在 41-47 nm 范围内。扫描电子显微照片显示合成的样品呈棱柱形到球形，并且观察到孔隙率随着 Ni2+ 离子浓度的增加而增加。能量色散 X 射线显微照片显示 Ni-CdO 样品中存在 Ni2+。合成样品的光学带隙由 Tauc 曲线确定。透射电子显微镜图像与扫描电子显微照片的表面形态一致。CdO 和 Ni-CdO 薄膜的电流-电压特性 (I-V) 表明，与黑暗相比，CdO 和 Ni-CdO 薄膜在紫外光下的光电流更大。合成样品的光学带隙由 Tauc 曲线确定。透射电子显微镜图像与扫描电子显微照片的表面形态一致。CdO 和 Ni-CdO 薄膜的电流-电压特性 (I-V) 表明，与黑暗相比，CdO 和 Ni-CdO 薄膜在紫外光下的光电流更大。合成样品的光学带隙由 Tauc 曲线确定。透射电子显微镜图像与扫描电子显微照片的表面形态一致。CdO 和 Ni-CdO 薄膜的电流-电压特性 (I-V) 表明，与黑暗相比，CdO 和 Ni-CdO 薄膜在紫外光下的光电流更大。