Structural and Optical Properties of Er³⁺- Doped Zinc-Titania Tellurite Glasses

Abstract:

In the present work, we studied the structural and optical properties of zinc-titania tellurite glass (75-x)TeO₂-20ZnO-5TiO₂-xEr₂O₃ doped with erbium ion Er³⁺ (where mol % : x= 0 (host), 0.5, 1, 1.5). The reported glasses were synthesized using tradition melt quench method. The X-ray diffraction and thermal profile were utilized to study the amorphous nature of the mentioned glass. Optical absorption UV-Visible-NIR spectra were measured for optical energy gap and Er³⁺ absorption bands analysis. Both visible and near infrared luminescence were performed at room temperature using 980 nm laser diode excitation where the optical transition mechanism of the Er³⁺ in the glass is finally proposed. Broad luminescence in the present glass suggests its potential for broadband optical application.

• Periodical: Solid State Phenomena (Volume 290)
• Pages: 9-15
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.290.9
• Online since: April 2019
• Authors: S.O. Baki*, Halimah Mohamed Kamari
• Keywords: Luminescence, Optical Absorption, Optical Energy Gap, Tellurite Glass

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