Synthesis, physical, optical and structural properties of SrTiO3 borosilicate glasses with addition of CrO3

Herein, we reported physical, optical and NMR characteristics of SrTiO3-based borosilicate glasses-doped chromium trioxide, CrO3 (1-7 mol%). Five glass samples (GS) were fabricated from the glassy system 60[Sr center dot TiO3]-40[2SiO(2)center dot B2O3] via a rapid melt-quench technique. X-ray diffraction analysis revealed the unstructured behaviour of the glasses. Numerous physical parameters were calculated and explained in detail. Urbach energy (E-U) and skin depth (delta) were studied to approve the disordered structure of glasses. Recorded infrared spectra of glasses were utilized to clarify the stretching mode of vibrations between the atoms, which correlated with their structural features and compositional variations. The energy bandgap (E-g) was estimated by employing a Davis and Mott relationship that comprises an absorption coefficient, alpha, as well as photon energy, h upsilon. Further, nuclear magnetic resonance (solid-state) spectra of the glasses were recorded and their analysis showed that the silicate and borate networks became highly polymerized with decreasing concentration of SrTiO3.

Automated summary

In this study, the physical, optical, and NMR characteristics of SrTiO3-based borosilicate glasses doped with chromium trioxide (CrO3) were investigated. Five glass samples were prepared through a rapid melt-quench technique. X-ray diffraction analysis confirmed the amorphous nature of the glasses. Various physical parameters were calculated and discussed. The infrared spectra provided insights into the vibrational modes of the glass structure, which correlated with compositional changes. Additionally, solid-state NMR spectra indicated an increased polymerization of the silicate and borate networks with decreasing SrTiO3 concentration.