Optical and electrical properties of tellurite base glass added with bismuth and holmium oxides

Tellurite glasses are good material in non-linear, photonic and communication application because these glasses are stable and provide low photon energy in room temperature. When other metal oxides are added in the tellurite glass system, it can enhance the optical and electrical behaviour. For this...

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Main Author:	Oo, Hooi Ming
Format:	Thesis
Language:	English
Published:	2013
Subjects:	Tellurites - Optical properties
Online Access:	http://psasir.upm.edu.my/id/eprint/67537/1/FS%202013%2082%20IR.pdf
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spelling	my-upm-ir.675372019-03-14T02:04:05Z Optical and electrical properties of tellurite base glass added with bismuth and holmium oxides 2013-07 Oo, Hooi Ming Tellurite glasses are good material in non-linear, photonic and communication application because these glasses are stable and provide low photon energy in room temperature. When other metal oxides are added in the tellurite glass system, it can enhance the optical and electrical behaviour. For this research, two series of binary tellurite based glasses: bismuth and holmium tellurite were successfully synthesized using a conventional melt quenching method. XRD results for both binary tellurite glass system show that the glasses are in amorphous phase. The glass samples are transparency, yellow colour for bismuth tellurite glass, orange colour holmium tellurite glass when there is no sunlight and yellow colour when sunlight is present. The optical and electrical properties measurements were investigated for both binary tellurite glasses system. For bismuth tellurite glass system, the density, molar volume and refractive index increase when bismuth ions Bi3+ increases. This is due to the increase in the polarization of the ions Bi3+. FTIR results show that it slightly shifted to the low wavenumber and this due to formation of TeO3 units and non-bridging oxygen. When formation TeO3 units and non-bridging oxygen increase, the optical band gap, Eopt decreases. The conductivity and the resistance in electric properties depend on the network modifier present in the sample. As ion Bi3+ content increases, the formation of non-bridging oxygen in the sample increase leads to an increase in the conductivity of the sample. For holmium tellurite glasses, as the holmium content increases, the density increasing while the molar volume decreases. Besides, the refractive index increases when the holmium content increases. FTIR results show that it slightly shifted to the low wave number and this also due to formation of TeO3 units and non-bridging oxygen. For electrical properties, the increase of ion Ho3+ content will increase the formation of holmium (iii) oxide quasi-molecular complexes in tellurite glass matrix which causes the conductivity of the sample to decrease. Tellurites - Optical properties 2013-07 Thesis http://psasir.upm.edu.my/id/eprint/67537/ http://psasir.upm.edu.my/id/eprint/67537/1/FS%202013%2082%20IR.pdf text en public masters Universiti Putra Malaysia Tellurites - Optical properties
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
topic	Tellurites - Optical properties
spellingShingle	Tellurites - Optical properties Oo, Hooi Ming Optical and electrical properties of tellurite base glass added with bismuth and holmium oxides
description	Tellurite glasses are good material in non-linear, photonic and communication application because these glasses are stable and provide low photon energy in room temperature. When other metal oxides are added in the tellurite glass system, it can enhance the optical and electrical behaviour. For this research, two series of binary tellurite based glasses: bismuth and holmium tellurite were successfully synthesized using a conventional melt quenching method. XRD results for both binary tellurite glass system show that the glasses are in amorphous phase. The glass samples are transparency, yellow colour for bismuth tellurite glass, orange colour holmium tellurite glass when there is no sunlight and yellow colour when sunlight is present. The optical and electrical properties measurements were investigated for both binary tellurite glasses system. For bismuth tellurite glass system, the density, molar volume and refractive index increase when bismuth ions Bi3+ increases. This is due to the increase in the polarization of the ions Bi3+. FTIR results show that it slightly shifted to the low wavenumber and this due to formation of TeO3 units and non-bridging oxygen. When formation TeO3 units and non-bridging oxygen increase, the optical band gap, Eopt decreases. The conductivity and the resistance in electric properties depend on the network modifier present in the sample. As ion Bi3+ content increases, the formation of non-bridging oxygen in the sample increase leads to an increase in the conductivity of the sample. For holmium tellurite glasses, as the holmium content increases, the density increasing while the molar volume decreases. Besides, the refractive index increases when the holmium content increases. FTIR results show that it slightly shifted to the low wave number and this also due to formation of TeO3 units and non-bridging oxygen. For electrical properties, the increase of ion Ho3+ content will increase the formation of holmium (iii) oxide quasi-molecular complexes in tellurite glass matrix which causes the conductivity of the sample to decrease.
format	Thesis
qualification_level	Master's degree
author	Oo, Hooi Ming
author_facet	Oo, Hooi Ming
author_sort	Oo, Hooi Ming
title	Optical and electrical properties of tellurite base glass added with bismuth and holmium oxides
title_short	Optical and electrical properties of tellurite base glass added with bismuth and holmium oxides
title_full	Optical and electrical properties of tellurite base glass added with bismuth and holmium oxides
title_fullStr	Optical and electrical properties of tellurite base glass added with bismuth and holmium oxides
title_full_unstemmed	Optical and electrical properties of tellurite base glass added with bismuth and holmium oxides
title_sort	optical and electrical properties of tellurite base glass added with bismuth and holmium oxides
granting_institution	Universiti Putra Malaysia
publishDate	2013
url	http://psasir.upm.edu.my/id/eprint/67537/1/FS%202013%2082%20IR.pdf
_version_	1747812482593849344

Optical and electrical properties of tellurite base glass added with bismuth and holmium oxides

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