Annealing effect on structural, morphological, and optical behaviors of CBD-CdS nanostructured films for solar cells

In the current work, the effect of an annealing process on structural, morphological, and optical behaviors of cadmium sulfide thin films is presented. A chemical bath deposition method for cadmium sulfide deposition is based on the use of glycine as a complexing agent. Cadmium sulfide thin films we...

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Bibliographic Details
Published in:Optical materials express 2014-11, Vol.4 (11), p.2280-2289
Main Authors: Quiñonez-Urias, D., Vera-Marquina, A., Berman-Mendoza, D., Leal-Cruz, A. L., García-Delgado, L. A., Zaldívar-Huerta, I. E., García-Juárez, A., Rojas-Hernández, A. G., Gómez-Fuentes, R.
Format: Article
Language:English
Subjects:
Annealing
Cadmium
Cadmium sulfides
Deposition
Mathematical analysis
Nanostructure
Sulfides
Thin films
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Summary:In the current work, the effect of an annealing process on structural, morphological, and optical behaviors of cadmium sulfide thin films is presented. A chemical bath deposition method for cadmium sulfide deposition is based on the use of glycine as a complexing agent. Cadmium sulfide thin films were grown by chemical bath deposition and annealed in a nitrogen atmosphere at 0, 100, 150, 200, and 250 [degrees]C for 30 minutes. Crystallographic and morphological studies of CdS thin films were performed by scanning electron microscopy, X-ray photoelectron spectroscopy, atomic force microscopy, and X-ray diffraction. The optical behavior of CdS thin films was evaluated by UV-Visible spectroscopy and band gap values were calculated by approximation using a Tauc plot. After annealing, densified CdS films formed by nanostructured crystallites exhibit suitable band gap values and present relatively high transmittance in the visible region, allowing their application as a window material for solar cells.
ISSN:2159-3930
2159-3930
DOI:10.1364/OME.4.002280