Phase growth analysis of sputtered TiO₂ thin films at low oxygen partial pressures using XANES and XRR

X-ray Photoelectron Spectroscopy and Resonant X-ray Spectroscopy Investigations of Interactions between Thin Metal Catalyst Films and Amorphous Titanium Dioxide Photoelectrode Protection Layers

“…The spectra are shown in Figure S11. The CIS spectrum of a-TiO 2 /Ni (1.3 nm) shows an additional intensity at lower photon energies (<457 eV), which may suggest some reduction of TiO 2 . , …”

“…The CIS spectrum of a-TiO 2 /Ni (1.3 nm) shows an additional intensity at lower photon energies (<457 eV), which may suggest some reduction of TiO 2 . 56,57 For the a-TiO 2 /Ir and a-TiO 2 /Au systems, only a single lowenergy gap state was observed and the spectroscopy signal associated with this state did not change after metal deposition. the semiconductor bulk and the metal by the difference in the unequilibrated electrochemical potentials.…”

Constructing Sub 10 nm Scale Interfused TiO2/SiOx Bicontinuous Hybrid with Mutual-Stabilizing Effect for Lithium Storage

“…For both anatase and rutile, they show double peaks in the L 3 edge at 461.0 and 461.7 eV but with obvious differences in relative intensity. In anatase, the peak at 461.0 eV is more intense, while in rutile, the peak at 461.7 eV is more intense. , It is observed that all spectra show the coexistence of both phases, except that the spectra from points 2 and 3 show major anatase and rutile phase distributions, respectively, indicative of the uniform and dense spread of anatase/rutile heterojunctions in the bridged TiO 2 nanoparticles. According to previous studies, such densely distributed heterojunctions of anatase and rutile phases could effectively lower the Li + migration barrier. − …”

Titanium and titanium oxides at the K- and L-edges: comparing theoretical calculations to X-ray absorption and X-ray emission measurements

“…The comparison of the experimental XAS L spectrum of the TiO 2 sample with the calculated spectra of rutile and anatase as well as literature spectra 52,53 conrmed the TiO 2 most likely being amorphous. However, in contrast to the K edge, the e g related peak at the L 3 edge more closely resembles the anatase phase in terms of symmetry, thus for the L-edge analysis of TiO 2 the anatase calculations were used.…”

“…Brookite is unlikely in the case of oxygen flow samples due to its metastable crystal structure. Based on Ti K- and L-edge calculations of rutile and anatase as well as qualitative comparisons to literature spectra 10,49–53 the TiO 2 sample was found to be likely amorphous, as the experimental spectra differ from both rutile and anatase. This complicates our analysis because OCEAN calculations require a known, periodic structure.…”