Synthesis Optimization of Cadmium Carbonate Films as Potential Precursor to Produce CdSe, CdTe, and CdO Films

Cadmium-derived materials are highly demanded for optoelectronics applications, and the scientific community has widely worked in different ways to develop them. In this research, the optimization of CdCO3 films using a chemical bath deposition (CBD) method at different deposition times (10, 11, and...

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Published inCoatings (Basel) Vol. 12; no. 11; p. 1691
Main Authors Heredia-Cancino, J. A., Mendoza-Peña, K. J., Higuera-Valenzuela, H. J., Soto B., M. Anahí, Ochoa-Landín, R., Castillo, S. J.
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.11.2022
Subjects
Cadmium
Cadmium compounds
Cadmium selenides
Cadmium tellurides
Coating processes
Crystallites
Crystals
Deposition
Fourier transforms
Glass substrates
Infrared spectroscopy
Intermetallic compounds
Methods
Morphology
Optimization
Optoelectronics
Photovoltaic cells
Precursors
Raman spectroscopy
Selenium
Semiconductors
Spectrum analysis
Structure
Mexico
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Summary:Cadmium-derived materials are highly demanded for optoelectronics applications, and the scientific community has widely worked in different ways to develop them. In this research, the optimization of CdCO3 films using a chemical bath deposition (CBD) method at different deposition times (10, 11, and 12 h) is reported. The intention to optimize CdCO3 films is in order to propose it as a precursor to produce different types of cadmium-derived semiconductors such as CdSe, CdTe, and CdO. The obtained films were characterized by X-ray diffraction (XRD), Raman spectroscopy, Fourier-transform infrared (FTIR) spectroscopy, optical absorption by diffuse reflectance, scanning electron microscopy (SEM), and energy-dispersive spectroscopy (EDS). The results provide evidence that CdCO3 films were effectively synthesized, featuring a rhombohedral crystalline structure with a preferential plane (104), and crystallite sizes were 65, 69, and 87 nm for the deposited samples at 10, 11, and 12 h, respectively. Surface morphology analysis revealed microstructures around 3–5 μm, with a deltoid shape, agglomerated and distributed randomly for all samples. The bandgap obtained was 3.78 eV for all samples.
ISSN:2079-6412
2079-6412
DOI:10.3390/coatings12111691