Vacuum thermal deposition of crystalline, uniform and stoichiometric CdS thin films in ambient H2S atmosphere
Crystalline, uniform and stoichiometric thin films of CdS have been fabricated on soda lime glass (SLG) substrates using vacuum thermal deposition method in the presence of hydrogen sulphide (H2S) atmosphere. The consequence of ambient H2S on the growth, quality and structure-property relationship of vacuum deposited CdS thin films has been investigated. The deposited films have been characterized by XRD, SEM with EDX analysis, AFM, XPS and optical spectroscopy. The physical characterization of as-deposited CdS films reveals that the films deposited in controlled H2S ambient are more crystalline, highly uniform and stoichiometric in comparison to films deposited without H2S atmosphere.
Vacuum depositionp; stoichiometry; cadmium sulphide; Hydrogen sulphide
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