Altering NH4OH concentration in producing chemical bath deposited CdS to steadily support electrodeposited CdTe

 

Among thin-film photovoltaic technology, CdS/CdTe based devices have achieved an impressive development that can commercially compete with silicon based solar cells, which is still have the highest market share. Laboratory scale CdS/CdTe based cells have reached efficiencies of ~22%, while its modules show efficiencies above 18%. Different deposition techniques in thin-film formation of  CdS and CdTe have been reported and this paper disclosed the use of a cost effective and scalable deposition methods of chemical bath deposition (CBD) and electrodeposition (ED) techniques in formation of CdS and CdTe materials respectively. The report unveils the formation of CBD-CdS thin film material in highly alkaline medium which can staidly support the growth of ED-CdTe layer in a highly acidic medium. The article presents a new approach in fabrication of thin film CdS/CdTe solar cells.

 

   

 G. K. U. P. Gajanayake, D. S. M. De Silva and H. Y. R. Atapattu

 Materials Science and Engineering

Abstract :- https://doi.org/10.1016/j.mseb.2020.114952

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