Optical and structural properties of zinc oxide nanoparticles synthesized by different sol-gel routes

Transformation into nanoscale from bulk structures involves an outstanding modification in the properties of materials. It gives an opportunity to get a novel behaviour such as size dependent in structural and optical properties. Zinc oxide nanoparticle is a promising material for many applications...

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Main Author:	Alrahabi, Mohammed Abdulsalam
Format:	Thesis
Language:	English
Published:	2014
Subjects:	QP Physiology
Online Access:	http://eprints.utm.my/id/eprint/48549/1/MohammedAbdulsalamAlrahabiMFS2014.pdf
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spelling	my-utm-ep.485492017-08-03T01:46:22Z Optical and structural properties of zinc oxide nanoparticles synthesized by different sol-gel routes 2014 Alrahabi, Mohammed Abdulsalam QP Physiology Transformation into nanoscale from bulk structures involves an outstanding modification in the properties of materials. It gives an opportunity to get a novel behaviour such as size dependent in structural and optical properties. Zinc oxide nanoparticle is a promising material for many applications especially optical devices. There are many methods to synthesis these nanoparticles. In this work ZnO nanoparticles are synthesized by sol-gel method using different routes with different stirring temperatures. The structural, morphological and optical properties of ZnO nanoparticles are studied. The result of the XRD shows that the average particle size of ZnO particles decreases with increasing stirring temperature. By using Williamson-Hall formula to calculate the average size of ZnO nanoparticles it reveals that the Zinc Acetate precursor gives smaller nanoparticles than Zinc Nitrate (at 70 o C ~22 and ~50 nm respectively). FESEM images display the semi-spherical shaped of the synthesized nanoparticles and emphasise that the nanoparticles synthesized by Zinc Acetate are finer and more homogenous than those synthesized with Zinc Nitrate. Furthermore, the photoluminescence result shows that the band energy of the zinc oxide nanoparticles synthesized by Zinc Nitrate is 3.02 eV while for those synthesized with Zinc Acetate is 3.10 eV. The excellent features of the result suggest that this work may constitute a basis for the tuneable synthesis of ZnO nanoparticles suitable for optoelectronics devices. 2014 Thesis http://eprints.utm.my/id/eprint/48549/ http://eprints.utm.my/id/eprint/48549/1/MohammedAbdulsalamAlrahabiMFS2014.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:86175?queryType=vitalDismax&query=Optical+and+structural+properties+of+zinc+oxide+nanoparticles+synthesized+by+different+sol-gel+routes&public=true masters Universiti Teknologi Malaysia, Faculty of Science Faculty of Science
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	QP Physiology
spellingShingle	QP Physiology Alrahabi, Mohammed Abdulsalam Optical and structural properties of zinc oxide nanoparticles synthesized by different sol-gel routes
description	Transformation into nanoscale from bulk structures involves an outstanding modification in the properties of materials. It gives an opportunity to get a novel behaviour such as size dependent in structural and optical properties. Zinc oxide nanoparticle is a promising material for many applications especially optical devices. There are many methods to synthesis these nanoparticles. In this work ZnO nanoparticles are synthesized by sol-gel method using different routes with different stirring temperatures. The structural, morphological and optical properties of ZnO nanoparticles are studied. The result of the XRD shows that the average particle size of ZnO particles decreases with increasing stirring temperature. By using Williamson-Hall formula to calculate the average size of ZnO nanoparticles it reveals that the Zinc Acetate precursor gives smaller nanoparticles than Zinc Nitrate (at 70 o C ~22 and ~50 nm respectively). FESEM images display the semi-spherical shaped of the synthesized nanoparticles and emphasise that the nanoparticles synthesized by Zinc Acetate are finer and more homogenous than those synthesized with Zinc Nitrate. Furthermore, the photoluminescence result shows that the band energy of the zinc oxide nanoparticles synthesized by Zinc Nitrate is 3.02 eV while for those synthesized with Zinc Acetate is 3.10 eV. The excellent features of the result suggest that this work may constitute a basis for the tuneable synthesis of ZnO nanoparticles suitable for optoelectronics devices.
format	Thesis
qualification_level	Master's degree
author	Alrahabi, Mohammed Abdulsalam
author_facet	Alrahabi, Mohammed Abdulsalam
author_sort	Alrahabi, Mohammed Abdulsalam
title	Optical and structural properties of zinc oxide nanoparticles synthesized by different sol-gel routes
title_short	Optical and structural properties of zinc oxide nanoparticles synthesized by different sol-gel routes
title_full	Optical and structural properties of zinc oxide nanoparticles synthesized by different sol-gel routes
title_fullStr	Optical and structural properties of zinc oxide nanoparticles synthesized by different sol-gel routes
title_full_unstemmed	Optical and structural properties of zinc oxide nanoparticles synthesized by different sol-gel routes
title_sort	optical and structural properties of zinc oxide nanoparticles synthesized by different sol-gel routes
granting_institution	Universiti Teknologi Malaysia, Faculty of Science
granting_department	Faculty of Science
publishDate	2014
url	http://eprints.utm.my/id/eprint/48549/1/MohammedAbdulsalamAlrahabiMFS2014.pdf
_version_	1747817417552166912

Optical and structural properties of zinc oxide nanoparticles synthesized by different sol-gel routes

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