Effect of zinc/cadmium proportion in CdS layers deposited by CBD method

Type : Publication
Auteur(s) :  R. Zellagui, H. Dehdouh, F. Boufelgha, A. Boughelout, T. Sahraoui, D. Chaumont, M. Adnane
Année :  2019
Domaine : Sciences des matériaux
Revue : International Multidisciplinary Research Journal
Résumé en PDF :  (résumé en pdf)
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Mots clés :  CdZnS, chemical bath, SEM, Raman, solar cells, Thin films

Résumé : 

Cadmium poisoning and the cost of panel recovery which is very expensive and difficult in the buffer layers of CdS in solar cell, for these two drawbacks, we do a search on the effect of proportion of zinc/cadmium in the properties layers of CdS. For this, our studies study the properties of CdxZn1-xS layers deposited by chemical bath (CBD). CdZnS thin films were synthesized by chemical bath deposition (CBD) with different deposition protocols to optimize deposition parameters such as temperature, deposition time, ion concentrations and pH. The surface morphology, structural, optical and chemical properties of the CdZnS thin films were studied by SEM, XRD, Raman and UV-visible spectrophotometer. The transmittance is 80% in the visible region 300 nm - 800 nm; the crystalline structure is hexagonal and cubic, the grain size is between 9.95 to 25.82 nm. It is observed that the transmittance and the shape change with the concentration of zinc in the solution; this result favors the application of these films in solar cells application.