Abstract
This paper reports the results obtained on the optical, electrical, magnetic and antifungal properties of CdS thin films co-doped with zinc and bromine. XRD studies reveal that all the films exhibit hexagonal crystal structure of pure CdS. The undoped, Zn-doped and (Zn, Br) co-doped CdS thin films have a strong (0 0 2) preferential growth. Nanosized grains are evinced from the SEM images of all the samples. Optical transparency of undoped CdS increases from 76 to 81% for the Zn-doped film and to 90% for the co-doped films. Decreased electrical resistivity is observed for the co-doped films. Room temperature ferromagnetic orderings in the form of S-shaped loops are observed for all the films. Antifungal activity was performed against A. niger fungus strain and from the zones of inhibition developed around the samples it was observed that the Zn-doped and (Zn, Br) co-doped CdS thin films exhibit better antifungal efficiency.
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