Structural and luminescence properties of zinc antimony borophosphate glass doped with rare-earth ions

A quaternary system of borophosphate glasses formulated with zinc and antimony were prepared in three series, namely series A, series B and series C. All the samples in each series were prepared using melt quenching technique followed by annealing at 350oC for 1 hour. The best composition in Series...

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Main Author:	Rohaizad, Aliff
Format:	Thesis
Language:	English
Published:	2013
Subjects:	Q Science (General)
Online Access:	http://eprints.utm.my/id/eprint/47926/25/AliffRohaizadMFS2013.pdf
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spelling	my-utm-ep.479262017-07-06T04:19:50Z Structural and luminescence properties of zinc antimony borophosphate glass doped with rare-earth ions 2013-07 Rohaizad, Aliff Q Science (General) A quaternary system of borophosphate glasses formulated with zinc and antimony were prepared in three series, namely series A, series B and series C. All the samples in each series were prepared using melt quenching technique followed by annealing at 350oC for 1 hour. The best composition in Series A [10P2O5–40B2O3–(50-x)Sb2O3–(x)ZnO] (10 = x = 50) in terms of stability and transparency, was selected for preparation of Series B [10P2O5–40B2O3–40Sb2O3–10ZnO–1 RE] (RE=Sm3+/Eu3+/Er3+/Nd3+), in order to study the effect of the different dopand ions to the molecular structure and luminescent properties of the glass system. Series C of [10P2O5–40B2O3–40Sb2O3–10ZnO–(x)Sm2O3] (0.5 = x = 2.0) was prepared to study the effect of samarium concentration on the luminescence properties. The XRD results showed that the crystalline phase of the glass changed with different amount of zinc and antimony substitution. Crystalline phase was observed for sample containing more than 30 mol % of zinc oxide. Result of IR spectroscopy indicated that ZnO affected the basic coupling units of P-O bond and Sb3+ ions entered the glass system by breaking up the B-O-B bonds. The modification of zinc antimony borophosphate glasses with rare earth was studied and showed that the presence of rare earth ion in the glass system did not change the structural features. Among various rare earth, Eu3+ and Sm3+ showed the strongest luminescence intensity. The luminescence intensity of Sm doped glass changed in no specific pattern when the concentration, x increased from 0.5 to 2.0 mol %. The samarium doped glass showed intense luminescence with a very sharp peak dominated by the 4G5/2 ?6H7/2 transition at 590 nm. 2013-07 Thesis http://eprints.utm.my/id/eprint/47926/ http://eprints.utm.my/id/eprint/47926/25/AliffRohaizadMFS2013.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Science Faculty of Science
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	Q Science (General)
spellingShingle	Q Science (General) Rohaizad, Aliff Structural and luminescence properties of zinc antimony borophosphate glass doped with rare-earth ions
description	A quaternary system of borophosphate glasses formulated with zinc and antimony were prepared in three series, namely series A, series B and series C. All the samples in each series were prepared using melt quenching technique followed by annealing at 350oC for 1 hour. The best composition in Series A [10P2O5–40B2O3–(50-x)Sb2O3–(x)ZnO] (10 = x = 50) in terms of stability and transparency, was selected for preparation of Series B [10P2O5–40B2O3–40Sb2O3–10ZnO–1 RE] (RE=Sm3+/Eu3+/Er3+/Nd3+), in order to study the effect of the different dopand ions to the molecular structure and luminescent properties of the glass system. Series C of [10P2O5–40B2O3–40Sb2O3–10ZnO–(x)Sm2O3] (0.5 = x = 2.0) was prepared to study the effect of samarium concentration on the luminescence properties. The XRD results showed that the crystalline phase of the glass changed with different amount of zinc and antimony substitution. Crystalline phase was observed for sample containing more than 30 mol % of zinc oxide. Result of IR spectroscopy indicated that ZnO affected the basic coupling units of P-O bond and Sb3+ ions entered the glass system by breaking up the B-O-B bonds. The modification of zinc antimony borophosphate glasses with rare earth was studied and showed that the presence of rare earth ion in the glass system did not change the structural features. Among various rare earth, Eu3+ and Sm3+ showed the strongest luminescence intensity. The luminescence intensity of Sm doped glass changed in no specific pattern when the concentration, x increased from 0.5 to 2.0 mol %. The samarium doped glass showed intense luminescence with a very sharp peak dominated by the 4G5/2 ?6H7/2 transition at 590 nm.
format	Thesis
qualification_level	Master's degree
author	Rohaizad, Aliff
author_facet	Rohaizad, Aliff
author_sort	Rohaizad, Aliff
title	Structural and luminescence properties of zinc antimony borophosphate glass doped with rare-earth ions
title_short	Structural and luminescence properties of zinc antimony borophosphate glass doped with rare-earth ions
title_full	Structural and luminescence properties of zinc antimony borophosphate glass doped with rare-earth ions
title_fullStr	Structural and luminescence properties of zinc antimony borophosphate glass doped with rare-earth ions
title_full_unstemmed	Structural and luminescence properties of zinc antimony borophosphate glass doped with rare-earth ions
title_sort	structural and luminescence properties of zinc antimony borophosphate glass doped with rare-earth ions
granting_institution	Universiti Teknologi Malaysia, Faculty of Science
granting_department	Faculty of Science
publishDate	2013
url	http://eprints.utm.my/id/eprint/47926/25/AliffRohaizadMFS2013.pdf
_version_	1747817265259085824

Structural and luminescence properties of zinc antimony borophosphate glass doped with rare-earth ions

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