Download scientific diagram | high resolution cu 2p xps spectra of a cuo and b cuo graphene and also high resolution o 1 s xps spectra of c cuo and d cuo graphene from publication: microwave. The cu 2p xps spectra exhibit two main cu 2p 3 2 and cu 2p 1 2 peaks together with two shake up satellite peaks for all the samples. 39 obviously, the centers of cu 2p 3 2 and cu 2p 1 2 peaks' binding energy were shifted toward left from cuo@cu 2 o bare to cuo@ cu 2 o pnrgo, which was caused by their compositional change.
The oxidation state of cu and s in the as prepared bulk cus was analyzed by xps. the high resolution xps spectra of the cu 2p and s 2p core levels for the cus (covellite) was displayed in fig. 3a. Xps analysis. the high resolution xps spectra of the cu 2p core level region of cuo and cuo graphene samples are shown in fig. 3. as shown in fig. 3, the cu 2p xps signals can be deconvoluted to xps signals of cu (ii) and cu (i) species which reveals the presence of cu 2 o in both powder samples. Download scientific diagram | a–c) high‐resolution xps spectra of cu 2p, in 3d, and n1s of the samples. d) xanes spectra of the cu k‐edge of cu foil, cuo, and cu‐in‐nc. e) fourier. Figure 4a shows the high resolution cu 2p doublet xps spectra of the grown cuo films with different graphene nanoparticle compositions. also, to obtain more information about the oxidation states of cu, the main cu \(2\hbox {p} {3 2}\) photoelectron peak along with its satellite are deconvoluted and are shown in figure 4b–e, respectively.
Download scientific diagram | a–c) high‐resolution xps spectra of cu 2p, in 3d, and n1s of the samples. d) xanes spectra of the cu k‐edge of cu foil, cuo, and cu‐in‐nc. e) fourier. Figure 4a shows the high resolution cu 2p doublet xps spectra of the grown cuo films with different graphene nanoparticle compositions. also, to obtain more information about the oxidation states of cu, the main cu \(2\hbox {p} {3 2}\) photoelectron peak along with its satellite are deconvoluted and are shown in figure 4b–e, respectively. The surface electronic properties and chemical states of the in 2 o 3 cuo were analyzed by x ray photoelectron spectroscopy (xps) (figure 3). the survey xps spectra reveal the presence of in, cu, and o peaks (figure 3a), consistent with the edx and xrd results. the c 1s peak, associated to adventitious carbon in the environment, is also observed. Figure 4 (a f) revealed the photoemission spectra corresponding to cu 2p, la 3d and o 1 s binding energies, respectively. figure 4 (a & b) depicts the binding energies of cu 2p 3 2 and cu 2p 1 2 for undoped and la doped cuo films as 934.26 ev and 953.91 ev, respectively, which is in good agreement with the earlier reports [23, 24]. compared to.
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