Preparation and characterization of Si02-Zr02 doped with Er3+ and Er3+/Yb3+ glass ceramic thin film / Nurul Iznie Razaki

In this thesis, the Er3+ and Er3+/Yb3+ doping dependents of 70Si02-30Zr02 glass ceramics thin film are studied. All the samples were prepared via sol-gel dip coating technique and annealed at 900 to 980°C. Full film densification was achieved for the deposited film, which indicates hydroxyl group wa...

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Main Author:	Razaki, Nurul Iznie
Format:	Thesis
Language:	English
Published:	2013
Subjects:	Clay industries Ceramics Glass
Online Access:	https://ir.uitm.edu.my/id/eprint/15501/1/TM_NURUL%20IZNIE%20RAZAKI%20AS%2013_5.PDF
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spelling	my-uitm-ir.155012022-04-18T01:55:24Z Preparation and characterization of Si02-Zr02 doped with Er3+ and Er3+/Yb3+ glass ceramic thin film / Nurul Iznie Razaki 2013-05 Razaki, Nurul Iznie Clay industries. Ceramics. Glass In this thesis, the Er3+ and Er3+/Yb3+ doping dependents of 70Si02-30Zr02 glass ceramics thin film are studied. All the samples were prepared via sol-gel dip coating technique and annealed at 900 to 980°C. Full film densification was achieved for the deposited film, which indicates hydroxyl group was successfully removed, as depicted by Raman spectra. Presence of higher rare earth ions raises the refractive index of the films, thus enabling the guiding of light in the film structure. Green and red emissions of Er3+ were observed upon 514.5nm excitation. At higher doping of Er3+ (0.58 mol %), concentration quenching occurs as depicted by a decrement of green emission.Meanwhile, the red emission increases as a function of Er3+-doping. Addition of Yb3+ as co-dopant with Er3+/Yb3+ proportions of 1/3, 1/5 and 1/10 in the highly doped of Er3+ (0.58 mol %) decreases the both emission with the red emission dominates the radiative transition. With further increased of Er3+ in highly doped of Yb3+ (5.8 mol %), there is no significant changes on the emission as the amount of Er3+ reached up to 0.9 mol%. Existence of ZrC>2 tetragonal phase at lower temperature is due to presence of RE doping and rapid thermal annealing of the film. Crystallization of the film gives rise to sharp and narrow peak of Er3+ emission spectrum. Films with Yb3+ ions co-doping demonstrate less crystallinity, as characterized by Raman spectroscopy and X-Ray Diffraction (XRD). XRD study also show that the samples with Yb3+ codoping have small crystallite size, which is consistent with Atomic Force Microscopy (AFM) measurement as the samples demonstrate low surface roughness. 2013-05 Thesis https://ir.uitm.edu.my/id/eprint/15501/ https://ir.uitm.edu.my/id/eprint/15501/1/TM_NURUL%20IZNIE%20RAZAKI%20AS%2013_5.PDF text en public mphil masters Universiti Teknologi MARA Faculty of Applied Sciences Abd. Rahman, Mohd Kamil (Prof. Dr.) Jais, Umi Sarah (Assoc. Prof. Dr.)
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Abd. Rahman, Mohd Kamil (Prof. Dr.) Jais, Umi Sarah (Assoc. Prof. Dr.)
topic	Clay industries Ceramics Glass
spellingShingle	Clay industries Ceramics Glass Razaki, Nurul Iznie Preparation and characterization of Si02-Zr02 doped with Er3+ and Er3+/Yb3+ glass ceramic thin film / Nurul Iznie Razaki
description	In this thesis, the Er3+ and Er3+/Yb3+ doping dependents of 70Si02-30Zr02 glass ceramics thin film are studied. All the samples were prepared via sol-gel dip coating technique and annealed at 900 to 980°C. Full film densification was achieved for the deposited film, which indicates hydroxyl group was successfully removed, as depicted by Raman spectra. Presence of higher rare earth ions raises the refractive index of the films, thus enabling the guiding of light in the film structure. Green and red emissions of Er3+ were observed upon 514.5nm excitation. At higher doping of Er3+ (0.58 mol %), concentration quenching occurs as depicted by a decrement of green emission.Meanwhile, the red emission increases as a function of Er3+-doping. Addition of Yb3+ as co-dopant with Er3+/Yb3+ proportions of 1/3, 1/5 and 1/10 in the highly doped of Er3+ (0.58 mol %) decreases the both emission with the red emission dominates the radiative transition. With further increased of Er3+ in highly doped of Yb3+ (5.8 mol %), there is no significant changes on the emission as the amount of Er3+ reached up to 0.9 mol%. Existence of ZrC>2 tetragonal phase at lower temperature is due to presence of RE doping and rapid thermal annealing of the film. Crystallization of the film gives rise to sharp and narrow peak of Er3+ emission spectrum. Films with Yb3+ ions co-doping demonstrate less crystallinity, as characterized by Raman spectroscopy and X-Ray Diffraction (XRD). XRD study also show that the samples with Yb3+ codoping have small crystallite size, which is consistent with Atomic Force Microscopy (AFM) measurement as the samples demonstrate low surface roughness.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Razaki, Nurul Iznie
author_facet	Razaki, Nurul Iznie
author_sort	Razaki, Nurul Iznie
title	Preparation and characterization of Si02-Zr02 doped with Er3+ and Er3+/Yb3+ glass ceramic thin film / Nurul Iznie Razaki
title_short	Preparation and characterization of Si02-Zr02 doped with Er3+ and Er3+/Yb3+ glass ceramic thin film / Nurul Iznie Razaki
title_full	Preparation and characterization of Si02-Zr02 doped with Er3+ and Er3+/Yb3+ glass ceramic thin film / Nurul Iznie Razaki
title_fullStr	Preparation and characterization of Si02-Zr02 doped with Er3+ and Er3+/Yb3+ glass ceramic thin film / Nurul Iznie Razaki
title_full_unstemmed	Preparation and characterization of Si02-Zr02 doped with Er3+ and Er3+/Yb3+ glass ceramic thin film / Nurul Iznie Razaki
title_sort	preparation and characterization of si02-zr02 doped with er3+ and er3+/yb3+ glass ceramic thin film / nurul iznie razaki
granting_institution	Universiti Teknologi MARA
granting_department	Faculty of Applied Sciences
publishDate	2013
url	https://ir.uitm.edu.my/id/eprint/15501/1/TM_NURUL%20IZNIE%20RAZAKI%20AS%2013_5.PDF
_version_	1783733409941553152

Preparation and characterization of Si02-Zr02 doped with Er3+ and Er3+/Yb3+ glass ceramic thin film / Nurul Iznie Razaki

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