Microstructural and optical characterizations of highly stable nanospheres of crystalline CdS via selective approach

A novel and selective approach to obtain highly stable and capping nanospheres of crystalline cadmium sulfide (CdS) via solution growth in cadmium nitrate tetrahydrate-thiourea-ligand-pH buffer systems using a Taguchi experimental design is presented. CdS characterization is carried out by laser dif...

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Bibliographic Details
Published in:Optical materials express 2014-01, Vol.4 (1), p.129-141
Main Authors: Leal-Cruz, A. L., Vera-Marquina, A., Berman-Mendoza, D., VillaVelázquez-Mendoza, C., Zaldívar-Huerta, I. E., García-Delgado, L. A., García-Juárez, A., Gómez-Fuentes, R., Rojas-Hernández, A. G.
Format: Article
Language:English
Subjects:
Cadmium
Cadmium sulfides
Capping
Crystal structure
Design analysis
Diffraction
Nanospheres
Scanning electron microscopy
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Summary:A novel and selective approach to obtain highly stable and capping nanospheres of crystalline cadmium sulfide (CdS) via solution growth in cadmium nitrate tetrahydrate-thiourea-ligand-pH buffer systems using a Taguchi experimental design is presented. CdS characterization is carried out by laser diffraction particle size analyzer, X-ray diffraction, scanning electron microscope/energy dispersive X-ray spectroscopy, and UV-Vis absorption spectroscopy. Synthesized nanospheres of crystalline CdS with an average crystal particle diameter of 37.5 nm and a capping layer thickness of 17.7-35.7 nm (73 to 115 nm as capped nanoparticles) keep size and form stable in aqueous solution. These crystalline CdS nanospheres exhibit a 2.46 eV band gap, as well as, an optical bandwidth comprises in the visible range with potential applications in solar cells.
ISSN:2159-3930
2159-3930
DOI:10.1364/OME.4.000129