Synthesis and Optical, Thermal, Structural Investigation of Zinc-Borate Glasses Containing V2O5

Abstract

Vanadium pentaoxide (V2O5) doped zinc borate (ZnB) oxide glasses that could be used in fiber optic cable cores in optoelectronics, in laser crystals in solar energy systems have been synthesized successfully. Structural characters of synthesized glasses were determined with differential scanning calorimeter (DSC) and Fourier-Transform infrared spectroscopy (FTIR).Glass transition (Tg), crystallization (Tc) and melting temperatures (Tm), and thermal stabilities (DT) of the glasses were determined and also their association with the change in V2O5 was explained. Structural units of boron and zinc that form the structure were determined according to FTIR data. As a result, it was determined that boron formed the glass matrix with BO3, BO4 and boroxol ring structural units; on the other hand, zinc contributed to the glass matrix with tetrahedral ZnO4 and octahedral ZnO6 structural units, and vanadium usually had modifier role in the structure with its VO4 and VO5 structural units. V2O5's presence in the structure with increasing amount changes thermal, structural and physical properties. Among the properties that significantly change, the most important one is optical properties. Indirect optical band gaps, Urbach energies, refractive index values of these synthesized samples were determined, and quite clear shifts towards red region were observed in the transmittance and absorption spectra. Optical band gap decreased to 1.24 eV from 2.55 eV with increasing amount of V2O5; on the other hand,

Bond characteristics and microwave dielectric properties of high‐Q materials in li‐doped Zn3B2O6 systems

“…The FT‐IR spectroscopy of Zn 3‐x Li 2x (BO 3 ) 2 ceramics sintered at 850 °C is shown in Figure 9E. According to previous studies, 36‐44 the peaks at 420‐640 cm −1 are attributed to ZnO 4 group, at 788‐1200 cm −1 belong to BO 4 group, and at 640‐780 cm −1 and 1200‐1596 cm −1 are originated from BO 3 group. The attribution details of each vibration peak are shown in Table 3.…”

In-Silico Monte Carlo Simulation Trials for Investigation of V2O5 Reinforcement Effect on Ternary Zinc Borate Glasses: Nuclear Radiation Shielding Dynamics

“…Glass densities and elemental compositions are presented in Table 1 . As can be seen in Table 1 , the values for the glass samples gradually declined from 3.392 g/cm 3 to 3.329 g/cm 3 with rising concentrations of V 2 O 5 [ 35 ]. On the other hand, the molar volume values rose linearly from 22.910 cm 3 /mol to 24.289 cm 3 /mol.…”

“…In this case, glasses suit the profile of these kinds of uses. For this aim, the compositions of a group of glasses encoded as ZBV1, ZBV2, ZBV3, and ZBV4 [ 35 ] were tested and extensively researched for their capabilities in gamma-radiation attenuation.…”

“…In this study, gamma-attenuation properties of the ZnO-B 2 O 3 -V 2 O 5 glass system were investigated in terms of the relationship between substitution-type (i.e., V 2 O 5 ) changes in typical shielding behaviors of glass system. Previously, Kilic [ 35 ] investigated the synthesis process and the optical, thermal, and structural properties of four different glasses based on zinc borate containing V 2 O 5 . His results showed that V 2 O 5 enabled the glass-transition temperature of a sample to fall from 553 °C to 531 °C.…”