Modification in morphological, structural, photoluminescence and antibacterial properties of SnS and CdS thin films by cold plasma treatment

SnS and CdS thin films was synthesized by electrochemical method and then the effect of applying the cold plasma on its properties was investigated. The morphology and structural properties of thin films were studied before and after plasma treatment using Xray diffraction spectrum, field-effect scanning electron microscope, energy dispersive Xray spectrum, Time-resolved photoluminescence and atomic force microscope. Given the high potential of cold plasma in surface modification of materials, the amount of wettability and antibacterial properties of thin films in the presence of standard grampositive and gram-negative bacteria was compared before and after plasma treatment. Results show that the applying the plasma causes the significant changes in morphology, self-cleaning and antibacterial properties of SnS and CdS thin films