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Structural and optical characteristics of erbium doped ternary TeO2-TiO2-Bi2O3 glasses


Citation

Baki, S. O. and Tan, L. S. and Kan, C. S. and Halimah, Mohamed Kamari and Mahdi, M. A. (2017) Structural and optical characteristics of erbium doped ternary TeO2-TiO2-Bi2O3 glasses. Solid State Phenomena, 268. 148 - 154. ISSN 1012-0394; ESSN: 1662-9779

Abstract

In this work we investigated both structural and optical characteristic of erbium doped ternary TeO2-TiO2-Bi2O3 tellurite oxide based glasses, synthesized via melt-quench method. The X-ray diffraction (XRD) and differential scanning calorimetry (DSC) confirmed its glassy nature and stability. Raman analysis revealed the presence of various coordination state TeO2 network consisting stretching/bending vibrations of Te-O bonds in the [TeO4] trigonal bi-pyramid units and fraction of [TeO3, TeO3+1] trigonal pyramids. From optical absorption measurement both optical band gap and Judd-Ofelt analysis (intensity parameters Ωt (t=2, 4, 6), transition probabilities, and radiative lifetimes of the Er3+ ions) have been performed for both host and doped glasses respectively. Photoluminescence studies for upconversion and near-infrared emissions analysis (under 980 nm excitation at room temperature. Both optical transition mechanism which involved nonradiative energy transfer between Er3+ ions through cross-relaxation and energy migration were also explained in detailed.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
Faculty of Science
DOI Number: https://doi.org/10.4028/www.scientific.net/SSP.268.148
Publisher: Trans Tech Publications
Keywords: Erbium doped; Judd-Ofelt analysis; Near infra-red; Photoluminescence; RAMAN; Tellurite glass
Depositing User: Mohd Hafiz Che Mahasan
Date Deposited: 15 Oct 2018 03:01
Last Modified: 15 Oct 2018 03:01
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.4028/www.scientific.net/SSP.268.148
URI: http://psasir.upm.edu.my/id/eprint/63303
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