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. 2016 Aug 30;6:32355. doi: 10.1038/srep32355

Figure 9.

Figure 9

High resolution XPS spectra of Co2p in (a) Co doped/untreated TiO2 film; plasma treatment time 0 second, (b) Co doped/treated TiO2 film; plasma treatment time 60 seconds, (c,d) are Gaussian fit of (a,b).