Síntesis de películas delgadas depresentan una estructura amorfa; sin embargo, muestras con espesores mayores de 300 nm crecen con estructura cristalina correspondiente a la fase ZnSO 8 H 8 (sulfohidróxido de zinc), indicando que la película formada es realmente una mezcla de ZnS e hidróxidos de Zn, conocidos genéricamente en la literatura como Zn(S,OH).Abstract ZnS thin films were deposited by CBD (chemical bath deposition) method using a solution containing thiourea and zinc acetate as sources of S and Zn and ammonium citrate as complexing agent. The samples were grown on soda lime glass substrates covered with a Cu 2 SnZnS 4 (CZTS) thin film. Through an extensive parameter study carried out varying the main deposition parameter in a wide range, conditions were found to grow ZnS thin films with suitable properties to be used as buffer layer in Cu 2 SnZnS 4 based solar cells.
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