Figure 5.
XPS spectra of the obtained CIS/ZnS NCs. (a) XPS survey spectrum of CIS/ZnS core/shell NCs. (b) The XPS spectrum of Cu 2p. (c) The XPS spectrum of In 3d. (d) The XPS spectrum of Zn 2p. (e) The XPS spectrum of S 2p of the CIS/ZnS NCs.
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