Niobium X-ray photoelectron spectra, niobium electron configuration, and other elemental information. Nb 2 O 5 charge is referenced to C1s at 284.8eV. Experimental information. N/A. Interpretation of XPS spectra. Nb metal gives asymmetric Nb3d peak shapes, but Nb oxides have symmetric peak shapes.

X-ray photoelectron spectroscopy (XPS or ESCA) curve fitting procedures, reference materials and useful notes are listed here to provide a starting point for the consistent interpretation of XPS spectra.

The Figure 2(b) gives some evidence of this reac- tion step and shows the XPS Nb 3d peaks (209.74 and 207.03 eV respectively for the 3d 3/2 and 3d 5/2 peaks).

The Nb 3d XPS pattern of NCM1 is shown in Fig. 3c. The peaks located at 206.2 eV and 209 eV represent the characteristics of Nb 3d 5/2 and Nb 3d 3/2 , respectively, indicating that the...

Apr 1, 1998 · For this reason, X-ray photoelectron spectroscopy (XPS) and angle resolved X-ray photoelectron spectroscopy (ARXPS) measurements have been carried out on properly prepared Nb samples, with particular attention to the presence of oxygen and carbon atoms on the surface.

This is shown in the thickness, composition, and thermal stability of the oxide layer formed on Nb 3 Sn. The XPS spectra were complemented by grazing incident X-ray diffraction (XRD) patterns collected using European Research Synchrotron facilities.

Jan 1, 2022 · XRR and HR-TEM studies confirm formation of a thin SiO layer on Si substrate. The XPS analysis ensures the formation of NbO -Nb O composition. Change in leakage current is observed depending upon the grain size. The Cole–Cole analysis indicates a dispersive relaxation phenomena in the samples.

Figures 4A,B shows the Nb3d and O1s core level XPS spectra of the niobium oxide films. For all samples, two different components can be identified, characteristic of the Nb3d 5/2 -Nb3d 3/2...

Feb 28, 2013 · After exposure to air, the outermost layer on all niobium samples is Nb 2 O 5. The photoelectrons from the first 2–4 Å contribute to the spectra, so the valence band structure of NbO 2 and Nb 2 O 5 can be confirmed from ultraviolet photoelectron spectroscopy (UPS).

Mar 2, 2020 · NbO terminated Nb(110) and its oxidation are examined by scanning tunneling microscopy and spectroscopy (STS).