Effect of annealing temperature on the structural and optical properties of nanocrystalline ZnO thin films prepared by sol-gel method

Undoped zinc oxide (ZnO) thin films were prepared by a sol-gel method. The effect of annealing temperature from 500 to 700°C on the structural and optical properties of the films was studied. The films nanostructure characterized by the X-ray diffraction method showed that the films were single phas...

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Main Authors:	Ibrahim, N.B., Al-Shomar, S.M., Ahmad, S.H.
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2013
Online Access:	http://journalarticle.ukm.my/6690/ http://journalarticle.ukm.my/6690/ http://journalarticle.ukm.my/6690/1/14_N.B._Ibrahim.pdf

id	ukm-6690
recordtype	eprints
spelling	ukm-66902016-12-14T06:41:55Z http://journalarticle.ukm.my/6690/ Effect of annealing temperature on the structural and optical properties of nanocrystalline ZnO thin films prepared by sol-gel method Ibrahim, N.B. Al-Shomar, S.M. Ahmad, S.H. Undoped zinc oxide (ZnO) thin films were prepared by a sol-gel method. The effect of annealing temperature from 500 to 700°C on the structural and optical properties of the films was studied. The films nanostructure characterized by the X-ray diffraction method showed that the films were single phase ZnO with wurtzite structure. The surface morphology studied using the field emission scanning electron microscope showed that the thickness of the films increased with the increment of annealing temperature. The grain size of the films increased with the increment of the annealing temperature. The film surface roughness measured using the atomic force microscope showed that the surface roughness of the film decreased (from 2.3 to 1.02 nm ), when the annealing temperature increased from 500 to 600°C then it increased to 3.06 nm at 700°C. The optical properties were studied by the UV-Vis spectrophotometer. The results showed that the films had high transmittance (above 80%) in the visible range and the exciton absorption occurred at a wavelength of 379 nm. The energy gap decreased with the increment of annealing temperature. Universiti Kebangsaan Malaysia 2013-12 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/6690/1/14_N.B._Ibrahim.pdf Ibrahim, N.B. and Al-Shomar, S.M. and Ahmad, S.H. (2013) Effect of annealing temperature on the structural and optical properties of nanocrystalline ZnO thin films prepared by sol-gel method. Sains Malaysiana, 42 (12). pp. 1781-1786. ISSN 0126-6039 http://www.ukm.my/jsm/
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	Undoped zinc oxide (ZnO) thin films were prepared by a sol-gel method. The effect of annealing temperature from 500 to 700°C on the structural and optical properties of the films was studied. The films nanostructure characterized by the X-ray diffraction method showed that the films were single phase ZnO with wurtzite structure. The surface morphology studied using the field emission scanning electron microscope showed that the thickness of the films increased with the increment of annealing temperature. The grain size of the films increased with the increment of the annealing temperature. The film surface roughness measured using the atomic force microscope showed that the surface roughness of the film decreased (from 2.3 to 1.02 nm ), when the annealing temperature increased from 500 to 600°C then it increased to 3.06 nm at 700°C. The optical properties were studied by the UV-Vis spectrophotometer. The results showed that the films had high transmittance (above 80%) in the visible range and the exciton absorption occurred at a wavelength of 379 nm. The energy gap decreased with the increment of annealing temperature.
format	Article
author	Ibrahim, N.B. Al-Shomar, S.M. Ahmad, S.H.
spellingShingle	Ibrahim, N.B. Al-Shomar, S.M. Ahmad, S.H. Effect of annealing temperature on the structural and optical properties of nanocrystalline ZnO thin films prepared by sol-gel method
author_facet	Ibrahim, N.B. Al-Shomar, S.M. Ahmad, S.H.
author_sort	Ibrahim, N.B.
title	Effect of annealing temperature on the structural and optical properties of nanocrystalline ZnO thin films prepared by sol-gel method
title_short	Effect of annealing temperature on the structural and optical properties of nanocrystalline ZnO thin films prepared by sol-gel method
title_full	Effect of annealing temperature on the structural and optical properties of nanocrystalline ZnO thin films prepared by sol-gel method
title_fullStr	Effect of annealing temperature on the structural and optical properties of nanocrystalline ZnO thin films prepared by sol-gel method
title_full_unstemmed	Effect of annealing temperature on the structural and optical properties of nanocrystalline ZnO thin films prepared by sol-gel method
title_sort	effect of annealing temperature on the structural and optical properties of nanocrystalline zno thin films prepared by sol-gel method
publisher	Universiti Kebangsaan Malaysia
publishDate	2013
url	http://journalarticle.ukm.my/6690/ http://journalarticle.ukm.my/6690/ http://journalarticle.ukm.my/6690/1/14_N.B._Ibrahim.pdf
first_indexed	2023-09-18T19:47:36Z
last_indexed	2023-09-18T19:47:36Z
_version_	1777406004662632448

Effect of annealing temperature on the structural and optical properties of nanocrystalline ZnO thin films prepared by sol-gel method

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