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Influence of erbium concentration on spectroscopic properties of tellurite based glass

Abd Azis, Muhammad Noorazlan and Mohamed Kamari, Halimah and Zulkefly, Siti Shafinas and Wan Yusoff, Wan Mohamad Daud and Ab. Aziz, Sidek (2014) Influence of erbium concentration on spectroscopic properties of tellurite based glass. Solid State Science and Technology, 22 (1 & 2). pp. 148-156. ISSN 0128-7389

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Official URL: http://journal.masshp.net/vol-22-no-1-2-2014/

Abstract

Erbium zinc borotellurite, {[(TeO2)0.70(B2O3)0.30]0.7 (ZnO)0.3}1-y (Er3O2)y glasses were prepared by rapid melt-quenching method. The structural properties of the glass samples were determined by using x-ray diffraction (XRD) method and was confirmed its amorphous nature. The FTIR analysis shows that the Erbium Oxide increases the number of non-bridging oxygen that affects the bonding structure of TeO2, ZnO and B2O3. The absorption edge gives the value of band gap Eopt and Urbach energy ∆E. The value of Eopt lies between 3.025 eV and 3.440 eV for indirect band gap and between 3.500 eV to 3.680 eV in the direct band gap. The Urbach energy shows non-linear with the concentration of Erbium Oxide and varies within 0.153 eV and 0.200 eV.

Item Type:Article
Keyword:Optical materials; Fourier transform infrared spectroscopy (FTIR); Optical band gap
Faculty or Institute:Faculty of Science
Publisher:Malaysian Solid State Science and Technology Society
ID Code:34187
Deposited By: Nurul Ainie Mokhtar
Deposited On:15 Sep 2016 11:05
Last Modified:15 Sep 2016 11:05

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