Optical Properties of Silica Borotellurite Glass Doped with Manganese Oxide

Abstract:

Silica borotellurite glasses doped with manganese oxide with chemical formula {[(TeO₂)_0.7(B₂O₃)_0.3­]_0.8[SiO₂]_0.2}_1-x{MnO₂}_x (where x = 0.0, 0.01, 0.02, 0.03, 0.04 and 0.05 molar fraction) were fabricated. Silica were extracted from the burning process of rice husk. Glass samples were prepared by using the melt-quenching technique. The FTIR spectra showed that the addition of MnO₂ contributed to the transformation of TeO₄ to TeO₃. The diffraction pattern of XRD showed a broad hump which indicates the amorphous nature of the samples. The result for both optical band gap and Urbach energy showed decreasing trend as the concentration of manganese increased.

• Periodical: Solid State Phenomena (Volume 268)
• Pages: 18-22
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.268.18
• Online since: October 2017
• Authors: I. Zaitizila, Mohamed Kamari Halimah*, Farah Diana Muhammad, Nurisya Mohd Shah
• Keywords: FTIR, Refractive Index, Urbach’s Energy, UV-VIS

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