Jun 15, 2023 · Peak-fitting parameters for improved fitting of Cu 2+ in quantitative XPS. The photoemission spectra of Cu 2 p are one of the most studied. Its analysis is especially challenging because, among others, the peaks for Cu 0 and Cu 1+ overlap, and Cu 1+ and Cu 2+ coexist under many conditions.

Interpretation of XPS spectra. Cu2p peak has significantly split spin-orbit components (Δ=19.75eV, intensity ratio=0.508). It is possible to distinguish Cu oxidation states using satellite features of Cu2p. Cu(II) has an observable collection of satellite features at 943eV.

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.

主要采集 Cu2p 峰及 Cu LMM 峰。 与 Cu2p 峰相比，Cu LMM 峰观察到的化学位移更大。 仅采集 Cu2p 可能难以区分化学态。 长期暴露于 X 射线或离子轰击会使二价铜还原，Ar 离子团簇模式溅射或者尽量减少 X 射线暴露可避免这种效应。 XPS 光谱解读

The XPS Spectra section provides raw and processed survey spectra, chemical state spectra, BE values, FWHM values, and overlays of key spectra. Atom% values from surveys are based on sample, as received, and Scofield cross-sections.

Jan 1, 2020 · Two oxidation states of copper were found (Cu +1 and Cu +2), which allows proposing the presence of valence tautomerism («redox-isomer» copper complex). A low temperature anomaly of magnetic properties of the copper …

May 12, 2017 · Chemical state X-ray photoelectron spectroscopic analysis of copper species is challenging because of the complexity of the 2p spectra resulting from shake-up structures for Cu(II) species and overlapping binding energies for Cu metal and Cu(I) species.

High resolution XPS spectrum of Cu 2p (A), S 2p (B) for the bulk CuS and Cu 2p (C), S 2p (D) for the S-rGO/CuS. [...] Over the present material synthesis routes, the sonochemical route is...

Jun 16, 2022 · Reveals Chemical Shifts and Chemical States that Develop from Highly Reactive Pure Cuo. Surface was strongly Ar+ ion etched to remove all contaminants, and. then allowed to react overnight with the UHV Gases – CO, H2, H2O, O2 & CH4.

Chemical state X-ray photoelectron spectroscopic analysis of copper species is challenging because of the complexity of the 2p spectra resulting from shake-up structures for Cu(II) species and overlapping binding energies for Cu metal and Cu(I) species.