Influence of sulfurization time on two step grown SnS thin films

SnS thin films were prepared using a simple two-stage process. The two-stage process involved in sputtering of Sn over glass substrate followed by sulfurization of sputtered Sn at 350 °C. The sulfurization process was carried out in the ambience of sulfur for different time lengths, 10–120 min and i...

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Bibliographic Details
Published in:Vacuum 2018-09, Vol.155, p.318-324
Main Authors: Gurubhaskar, M., Thota, Narayana, Raghavender, M., Hema Chandra, G., Prathap, P., Venkata Subbaiah, Y.P.
Format: Article
Language:English
Subjects:
Optical transmittance
Raman scattering
Sulfurization
Two-stage process
X-ray photoelectron spectroscopy
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Summary:SnS thin films were prepared using a simple two-stage process. The two-stage process involved in sputtering of Sn over glass substrate followed by sulfurization of sputtered Sn at 350 °C. The sulfurization process was carried out in the ambience of sulfur for different time lengths, 10–120 min and its influence on physical properties are reported. XRD study showed that the films sulfurized at 10 min were poor in crystallinity with reflections of un-reacted tin and sulfur. As the sulfurization time (St) is increased to 60 min, a single phase orthorhombic SnS was observed with (111) preferred plane. Four distinct Raman modes at 95, 163, 190 and 220 cm−1 confirms the formation of SnS for St > 30 min, however, St 
ISSN:0042-207X
1879-2715
DOI:10.1016/j.vacuum.2018.06.011