X-ray photoelectron spectroscopy of sodium borosilicate glasses

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

“…For the crystallized references, the O1s peaks consist of only a single and symmetric Gaussian-Lorentzian peak with a small FWHM E1.2 eV. For (1Àx)TeO 2 -xWO 3 glasses with x ¼ 0:05 and 0.30, the registered FWHM of the only one component O1s peak is slightly larger, E1.5 eV, and is independent of glass compositions, Table 1 , 529.6 eV) is sufficiently large (0.9 eV) to be registered at least as an asymmetry of the O1s peak and an increase of the FWHM (37,38).…”

Structure of CaO–B2O3–SiO2–TiO2 Glasses: a Raman Spectral Study

“…On the other side, according to previous study on borosilicate glass, alkali ions (Na + ) and alkaline earth ions are associated with borates units preferentially in borosilicate glasses. [34][35][36][37][38] It is presumed that Ca 2+ associates with boron preferentially in borosilicate glasses so that Ca 2+ associates with boron to form Ca-O-B bonds at first in this system and has slight effects on [SiO4] structure units when basicities increase from 1.0 to 1.33. However, as basicities increase to 1.5, there is more Ca 2+ to affect [SiO4] structure units, which leads to rapid increase of Q2/Q3.…”

“…Furthermore, according to some studies on borosilicate glasses by X-ray photoelectron, Infrared, NMR spectroscopy and so on, there exists a certain amount of Si-O-B linkages in borosilicate and alkaline borosilicate glasses. 35,[41][42][43] It is proposed that the increase of bridging oxygen may be also due to the forming of Si-O-B structure groups.…”

Electron irradiated sodium–potassium–aluminium silicate glass surfaces investigated by XPS

“…5 The line shape changes are observed for the O 1s XPS transition, consisting of non-bridging oxygen (NBO) and bridging oxygen (BO) contributions, where the intensity ratio of these two contributions and their energy separation depends on the content of the silica network modifier introducing NBO. 6 The effect of electron beam on the structural and chemical changes in potassium silicate glasses has already been studied, applying the analysis of the XPS line shapes transitions and the pattern recognition (PR) method. 7 Application of the PR methods known as the k-nearest neighbour (kNN) rule and the fuzzy k-nearest neighbour (fkNN) rule analysing the XPS line shape transitions recorded from the multi-component complex systems for qualitative and quantitative purposes was described elsewhere (Ref.…”