Abstract The purpose of this paper is establishing two stables and originals formulations routes for the synthesis of cadmium carbonate (CdCO3) by chemical bath deposition (CBD) and the analysis of the physical properties of the synthesized materials, such as optical, chemical, structural and morphological properties by using characterization techniques such as optical absorption by diffuse reflectance, X-ray Diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS), Scanning electron microscopy (SEM) and Raman. The direct bandgaps values related to direct transitions of electrons from the valence band to the conduction band of CdCO3 thin films are 3.81 and 3.79 eV. By X-ray diffraction (XRD) technique was determined as a hexagonal structure with space group R-3c (167) for CdCO3 thin films. Finally, the expected chemical composition of CdCO3 thin films was proving by the low- and high-resolution X-ray Photoelectron Spectroscopy (XPS) spectra. The Raman spectra show five vibrational characteristics frequencies of CdCO3 and evidencing that the synthesized thin films correspond to CdCO3.

中文翻译：

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CBD 两种配方对碳酸镉薄膜的光学、结构和形态表征

摘要 本文的目的是建立两条稳定和原始的配方路线，用于化学浴沉积（CBD）合成碳酸镉（CdCO3），并分析合成材料的光学、化学、结构和结构等物理性质。通过使用表征技术，例如漫反射光学吸收、X 射线衍射 (XRD)、X 射线光电子能谱 (XPS)、扫描电子显微镜 (SEM) 和拉曼光谱来分析形态特性。与电子从价带直接跃迁到 CdCO3 薄膜的导带相关的直接带隙值为 3.81 和 3.79 eV。通过 X 射线衍射 (XRD) 技术确定 CdCO3 薄膜为六边形结构，空间群为 R-3c (167)。最后，低分辨率和高分辨率 X 射线光电子能谱 (XPS) 光谱证明了 CdCO3 薄膜的预期化学成分。拉曼光谱显示了 CdCO3 的五个振动特征频率，并证明合成的薄膜对应于 CdCO3。