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Influence of pH on the Properties of Chemically Prepared SnS and CdS Thin Films

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Title Influence of pH on the Properties of Chemically Prepared SnS and CdS Thin Films
 
Creator John, Smiya
Francis, Melda
A P, Reena Mary
Geetha, V
 
Subject SnS
CdS
XRD measurements
Raman analysis
EDS spectra
 
Description 326-334
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.
 
Date 2023-05-25T08:43:53Z
2023-05-25T08:43:53Z
2023-05
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscpr.res.in/handle/123456789/61945
https://doi.org/10.56042/ijpap.v61i5.70933
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJPAP Vol.61(05) [May 2023]