Optical, XPS and XRD Studies of Semiconducting Copper Sulfide Layers on a Polyamide Film
Figure 4
Sulfur XPS S 2p spectra of PA 6 sulfured for 5 hours and treated with Cu(I) salt: (1) before and (2) after cleaning, (3) sulfured PA 6 (for 4 hours at ) before Cu(I) salt treatment. Arrows show possible positions of sulfur peaks as described in the text.
