“…To resolve this problem investigators demonstrated that the metal containing alloys, like Se-Te-Cu, Ag-Se-Ge, Cu-As-Se, Cd-Se-Te, W-Co-Se, Se-Te-Zn, Se-Sb-Ag, Fe-Se-Ge-Sb, As-Se-Tl etc. [28][29][30][31][32][33][34][35][36] in recent year studies, materials which show scientific advantages over to non metallic chalcogenide alloys. Outcomes of these studies reveal an addition of metallic or semimetallic elements in glassy configuration can partially over come to described prime difficulty.…”