Abstract
Zn x Fe y S thin films prepared by an electrodeposition method were thermally treated in argon atmosphere at various temperatures up to 450 °C. The chemical composition and film morphology of the annealed samples were examined by energy dispersive X-ray analysis and scanning electron microscopy, respectively. Optical absorption analysis was carried out by a spectrophotometric method, and X-ray diffraction allowed the determination of the crystalline structure. The chemical and optical properties of the films varied as a function of the heat treatment. The indirect band gap increased significantly with temperature for the various Zn Fe molar ratios. As the annealing temperature increased, a phase transition from the pyrrhotite hexagonal structure to the pyrite cubic structure occurred in the samples having low Zn Fe molar ratios. The samples with high Zn Fe molar ratios were found to be composed mainly of a sphalerite structure, and their crystallographic phase did not change significantly with temperature.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
