“…Binary sulphide compounds such as Ag 2 S, Cu 2 S, SnS 2 , and In 2 S 3 have been obtained in our laboratory in 200-320 ∘ C domain of temperature. Later, ternary sulphide compounds based on copper and silver which generally crystallized in chalcopyrite structure I-III-VI 2 (CuInS 2 , AgInS 2 AgInS 2− Se ) were prepared, by Guezmir et al [21], Kamoun et al [22,23], Aissa [24,25], and Lazzez et al [26], in substrate temperature lying in 340-420 ∘ C. Finally, Bouaziz et al [27,28] obtained Cu 2 SnS 3 and Cu 3 SnS 4 ternary compounds in 300-400 ∘ C domain.…”