Mössbauer and XANES of TeO2–BaO–TiO2 glasses

TeO2–WO3 Glasses: Infrared, XPS and XANES Structural Characterizations

“…2b, is the prepeak, A, which corresponds to the 2p-5s(Te) transition. The regular evolution in the intensity of this pre-peak with x may also be related to the stereochemical activity of the lone pair 5s 2 (Te) (32,42), that directly depends on the tellurium coordination number. The stereochemical activity of the lone pair 5s 2 (Te) is maximum in the reference Tl 2 TeO 3 made up of TeO 3 E trigonal pyramids.…”

“…The spectra exhibit a pre-peak, noted A, around 4348 eV, Fig. 2a, characterizing the interactions of the empty Te 5s states localized at the bottom of the conduction band with the O 2p 3/2 orbitals (antibonding states) (30,32). Since the absorption spectra are normalized in the same way, the A pre-peak intensities can be compared, Fig.…”

Spectral broadening and luminescence quenching of 1.53μm emission in Er3+-doped zinc tellurite glass

“…It is worth to mention, based on Raman analysis, that erbium ions influence the Te-O local structure as oxide modifiers in binary or ternary tellurite-based glasses [47][48][49][50]. However, optical properties of active RE ions are not sharply affected by the structural changes induced by the increasing erbium content.…”

X-ray absorption and Raman characterizations of TeO2–Ga2O3 glasses

“…The spectra exhibit a pre-peak, noted A, around 4348 eV, Fig. 4, characterizing the interactions of the empty Te 5s states localized at the bottom of the conduction band with the O 2p 3=2 orbitals (antibonding states) [8,34]. Since the absorption spectra are normalized in the same way, the A pre-peak intensities can be compared.…”

“…Indeed, TeO 2 -based multicomponent glasses exhibit the highest non-linear index n 2 ever found for oxide glasses [3][4][5]. In order to find a correlation between the physical characteristics observed in these glasses and their atomic arrangements, structural characterizations have been done by several techniques: infrared and Raman spectroscopies [3,6,7], M€ ossbauer spectroscopy [8,9], X-ray absorption [10][11][12], and X-ray and neutron scattering [13][14][15].…”