Infrared absorption spectra analysis of TeO₂-ZnO-Bi₂O₃-TiO₂ doped B₂O₃ glasses

Abstract

Boro-tellurite glasses with composition 60TeO2- (30-x)ZnO- 5Bi2O3- 5TiO2- xB2O3 (where x = 0,2.5, and 5 mol%) have been successfully fabricated by melt quenching technique. FTIR characterization was carried out in range 400-4000 cm−1 using a KBr pellet method to study the glass chemical bond. The results show that several absorption peaks were recorded in range 400-4000 cm−1. However, most of the absorption peaks were detected in the region 400-1600 cm−1. It can be divided into 5 groups from 400-450 cm−1, 620-650 cm−1, 900-940 cm−1, and 1100-1300 cm−1. The main absorption peak of TZBT glass located at 620-650 cm−1, which is the fingerprint of TeO2 glass from Te-O vibration of TeO4 units. The addition of B2O3 components constructed a new absorption at 930 cm−1 and 1100-1300 cm−1. The absorption at 930 cm−1 belongs to B-O vibrations of BO4 units. While the absorption at 1100-1300 cm−1 relates to B-O vibrations of BO3 units. For further investigation, the deconvolution process was performed to discover the effect of the addition of B2O3 in the main absorption spectra. It was confirmed that six bands detected in the main absorption peak. The effect of B2O3 reduces the absorption band and shift the wavenumbers in TZBT glass.

Thermal Stability of ZnO/Tm₂O₃ Substitution on Tellurite-Zinc-Bismuth-Sodium (TZBN) Glasses

“…Thulium (Tm), a rare earth element, has emerged as a promising dopant for glasses, thanks to its characteristic luminescence properties, which make it suitable for a variety of laser and amplifier applications [6,7]. Among known glass former role, tellurite-based glasses have emerged as a promising glass system for rare earth doping, due to their high refractive index, low phonon energy, and excellent thermal and mechanical properties [8,9,10,11].…”

Physical Properties Study of Sodium Doped Boro-Tellurite (Na₂O: TeO₂-B₂O₃-ZnO) Glasses

“…There are different types of glass such as silicate, phosphate, borate, and tellurite glass [3]. Tellurite glass has excellent properties and wide applications in optoelectronics, lasing material, sensing, and radiation shielding [4,5,6,7]. It has high refractive index, good thermal stability, good chemical and physical durability, low melting points, and low phonon energy [8,9].…”

Investigation on the effect of ZnO/PbO exchange on Physical and Optical Properties of Tellurite Sodium Bismuth Zinc doped Lead Oxide Glasses

“…Over the last few decades, the applications of glass have evolved to offer even more advantages, including fiber optics, fiber lasers, laser active materials, and radiation shielding materials [1-3]. Among the types of glass suitable for these applications, tellurite glass stands out as a promising option [4][5].…”