Indian Journal of Pure & Applied Physics | |
Influence of pH on the Properties of Chemically Prepared SnS and CdS Thin Films | |
article | |
Smiya John1  Melda Francis2  Reena Mary A P1  V Geetha1  | |
[1] Department of Physics, Govt.Victoria College ,(affiliated to University of Calicut) Palakkad Kerala 678 001;Department of Physics, Mercy College ,(affiliated to University of Calicut) Palakkad Kerala 678 006 | |
关键词: SnS; CdS; XRD measurements; Raman analysis; EDS spectra; Article; | |
DOI : 10.56042/ijpap.v61i5.70933 | |
来源: National Institute of Science Communication and Information Resources | |
【 摘 要 】
The SnS and CdS thin films were chemically prepared from the bath solutions with different pH values of 9.8, 9.9, and 10, and 11.3, 11.4, and 11.5 respectively. The X-ray diffraction confirmed the formation of orthorhombic SnS with a preferred orientation along the 013 plane and cubic CdS along the 311 planes. Crystallite size and lattice strain were calculated from the Williamson-Hall plot, and it was found that the crystallite size increased as pH increased. Raman spectra showed the prominent peaks of SnS and CdS thin films. Optical studies revealed a decrease in the optical band gap of both samples with increasing pH values. SnS films showed needle-like morphology with agglomerates and CdS flake-like interconnected structures. From the EDS analysis, it was noticed that both the SnS and CdS thin films shifted to a metal-rich composition with the increase in the pH of the bath solution. Finally, a solar cell (ITO/SnS/CdS/Ag) was made, and it was found that cell structures formed with SnS and CdS that were deposited with pH values of 10 and 11.3 showed better performance.
【 授权许可】
Unknown
【 预 览 】
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