Enhancement of Optical Emission and Dielectric Properties of Eu3+-Doped Na2O–ZnO–TeO2 Glass Material

Abstract

Neodymium doped Na 2 O-ZnO-TeO 2 (NZT) glasses were prepared by the conventional melt quenching technique.DTA and TG were used to confirmation of glass preparation through the glass transition temperature at 447°C for the glass system. The analysis of FTIR spectra and X-ray diffraction described the nature of the samples were ionic and amorphous respectively. The optical bandgap energy was estimated using absorption spectra and found to be decreased from 2.63eV to 1.32 eV due to the increase of doping concentration. The intensity of the emission spectra was enhanced for the higher concentration of Nd 3+ ions. The dielectric constant of the glass samples was found to be constant for the large range of frequency (3 kHz to 1 MHz). The variation of conductivity with the temperature of the samples had shown the Arrhenius mechanism of conduction.

Exploring the Influence of ZnF2 on Zinc-Tellurite Glass: Unveiling Changes in OH Content, Structure, and Optical Properties

“…In general, TeO 2 is combined with alkali-based, alkaline earth, and transition metal oxides to form stable glasses . For instance, in recent years, several studies on TeO 2 -ZnO-Na 2 O ternary glasses (TZN) have been performed for fiber optics drawing due to their interesting nonlinear properties and suitable glass stability. − However, the transparency window in the infrared region is commonly limited to 3 μm for these glasses due to the OH-group content and their strong absorption, which limits their use in some applications .…”

High‐Temperature Investigation of TeO2–Na2O–ZnO Glasses

“…Tellurite glasses are good candidates for photonic applications because of their high linear refractive index, high dielectric constant, wide infrared transmittance, and high third-order nonlinear optical values as well as high solubility of rare-earth dopants. [1][2][3][4] Thus, a lot of works on luminescent rare-earth-doped tellurite glasses have been published [5][6][7][8][9] and a recent study is dedicated to development of downconversion phosphors of rare-earth-doped tellurite glasses for performance improvement of solar cells. [10] On the other hand, knowing the structural evolution of glasses is a difficult task that has sparked the interest of many researchers in the glass field.…”