Fabrication and Characterization of Eu³⁺ Doped Tellurite Glasses for Laser Materials

Abstract

The enhancement of trivalent europium ion on the spectroscopic properties of zinc barium tellurite oxyfluoride glasses has been investigated set up under 8 different conditions of the (55-x)TeO₂-10ZnF₂-35BaO-xEu₂O₃ with 0.0 ≤ x ≤ 8.0 (in mol %). The physical, optical and photoluminescence properties. Measuring the UV-VIS-NIR absorption spectra with a proven measured in air atmosphere in the range of 200–2,500 nm demonstrated an extension of intensity of all absorption bands with Eu₂O₃ contents increased. In addition, the performance with excitation wavelengths of 465 nm carried out the photoluminescence properties of Eu³⁺ doped ZnF₂-BaO-TeO₂ glass system. As a final observation, five photoluminescence bands were monitored at 578 nm, 591 nm, 612 nm, 652 nm and 700 nm that transition from the relaxation of an electron from excited state to lower state. The intense peak (reddish-orange emission) of the glasses was found at 612 nm. Methodical analysis of the results encouraged that the Eu₂O₃ doped is applicable for laser material and optical device applications.

Keywords:

• Tellurite glasses
• spectroscopic properties
• europium ion

Acknowledgments

The authors would like to thank National Research Council of Thailand (NRCT) for support of this research. This research work was partially supported by Chiang Mai University.