“…So far, various methods have been used to deposit FeS2 thin films including spray pyrolysis (Orletskii et al, 2016), electrochemical deposition (ECD) (Prabukanthan et. al., 2017;Kawai et al, 2014), sulfurization of iron films (Adusumilli et al, 2016), chemical bath deposition (CBD) (Aluri et al, 2015;Vedavathi et al, 2015;Kassim et al, 2012), sol-gel deposition (Kment et al, 2014), and others. In the CBD method, the aqueous solution used consists of ions for the targeted material of the thin film (Kassim et al, 2010;Manikandan et al, 2014), and the complexing agents are generally added to improve the solution stability, prevent metal hydroxide precipitation, produce sufficient adherence or smooth microstructures.…”