Abstract
The hexagonal cadmium sulphide (CdS) thin films with strong (002) orientation are successfully prepared by chemical bath deposition (CBD) technique using the reaction between CdCl 2 and CS(NH 2) 2. Especially, polyglycol is used to modify the CBD system without magnetic agitation. The influence of bath temperature on the properties of the CdS films such as optical transmission, surface morphology and the structure is researched. The results show that polyglycol can flatten the films and diminish the pinhole. X-ray diffraction (XRD) and transmission electron microscopy (TEM) tests verify that the deposited CdS films presented a hexagonal structure and no secondary or mixed phases are found. A preferential columnar growth parallel to the substrate edge is also observed. It is found that the bath temperature plays a vital role on the quality of the CdS films. The increase of bath temperature improves the surface morphology of the CdS films and also diminishes pinholes on the films. The optimum bath temperature is 85 °C. The band gap calculated from transmission spectra is about 2.56–2.336 eV.
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.
