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Application of ZnO nanoparticles EM wave detector prepared by solgel and self-combustion techniques

Zinc oxide (ZnO) has found many important applications such as optoelectronic devices, sensors and varistors. The challenging part however is synthesizing ZnO nanoparticles and its utilisation as EM detectors. Sol-gel and self-combustion techniques were chosen in this study due to the ability to pro...

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Main Authors:	Yahya , N, Daud , H, Tajudding, N. A, Daud, H. M., Shafie, A., Puspitasari, P.
Format:	Article
Published:	2010
Subjects:	L Education (General)
Online Access:	http://eprints.utp.edu.my/7330/
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spelling	my.utp.eprints.73302011-12-19T00:54:14Z Application of ZnO nanoparticles EM wave detector prepared by solgel and self-combustion techniques Yahya , N Daud , H Tajudding, N. A Daud, H. M. Shafie, A. Puspitasari, P. L Education (General) Zinc oxide (ZnO) has found many important applications such as optoelectronic devices, sensors and varistors. The challenging part however is synthesizing ZnO nanoparticles and its utilisation as EM detectors. Sol-gel and self-combustion techniques were chosen in this study due to the ability to produce single phase and nano-size samples. The starting mixture consists of 10 grams of zinc (II) nitrate, Zn(NO3)2.6H2O salt which was dissolved in 50 mL of nitric acid, HNO3. The solution was stirred at 250 rpm continuously for 1 day. The mixture was then gradually heated for every 15 minutes until it combusted at 110°C for the self-combustion technique. For the sol-gel technique, the dissolved mixture was heated at 40°C, 50°C, 60°C and 70°C until the gelatine was formed. After the drying process, the as-prepared samples were annealed at 100°C and 200 °C for 1 hour for each technique. Characterizations were performed by using X-Ray Diffraction (XRD), Raman Spectra and Scanning Electron Microscopy (SEM). The XRD analysis showed a major peak of [101] plane at 2Θ for the self-combustion technique and the sol-gel technique. Raman results for the samples prepared via sol-gel and self-combustion techniques had shown the major peak of ZnO that is located at the Raman shifts of 437.67 cm-1. Using the Scherrer equation, single crystal nano particle of ZnO was successfully obtained in the range of 38.49 nm to 50.70 nm for the sample prepared via the sol gel technique. By the self-combustion technique, the average dimension of the as-prepared sample is in the range of 34-49 nm. Further heat treatment resulted in a major change of the Raman shift corresponding to the single phase ZnO nano particles. The best samples were used as electromagnetic (EM) detectors. The EM detectors are polymer based composite which were prepared using a casting technique. © (2010) Trans Tech Publications, Switzerland. 2010 Article PeerReviewed Yahya , N and Daud , H and Tajudding, N. A and Daud, H. M. and Shafie, A. and Puspitasari, P. (2010) Application of ZnO nanoparticles EM wave detector prepared by solgel and self-combustion techniques. Journal . ISSN 16625250 http://eprints.utp.edu.my/7330/
institution	Universiti Teknologi Petronas
building	UTP Resource Centre
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Petronas
content_source	UTP Institutional Repository
url_provider	http://eprints.utp.edu.my/
topic	L Education (General)
spellingShingle	L Education (General) Yahya , N Daud , H Tajudding, N. A Daud, H. M. Shafie, A. Puspitasari, P. Application of ZnO nanoparticles EM wave detector prepared by solgel and self-combustion techniques
description	Zinc oxide (ZnO) has found many important applications such as optoelectronic devices, sensors and varistors. The challenging part however is synthesizing ZnO nanoparticles and its utilisation as EM detectors. Sol-gel and self-combustion techniques were chosen in this study due to the ability to produce single phase and nano-size samples. The starting mixture consists of 10 grams of zinc (II) nitrate, Zn(NO3)2.6H2O salt which was dissolved in 50 mL of nitric acid, HNO3. The solution was stirred at 250 rpm continuously for 1 day. The mixture was then gradually heated for every 15 minutes until it combusted at 110°C for the self-combustion technique. For the sol-gel technique, the dissolved mixture was heated at 40°C, 50°C, 60°C and 70°C until the gelatine was formed. After the drying process, the as-prepared samples were annealed at 100°C and 200 °C for 1 hour for each technique. Characterizations were performed by using X-Ray Diffraction (XRD), Raman Spectra and Scanning Electron Microscopy (SEM). The XRD analysis showed a major peak of [101] plane at 2Θ for the self-combustion technique and the sol-gel technique. Raman results for the samples prepared via sol-gel and self-combustion techniques had shown the major peak of ZnO that is located at the Raman shifts of 437.67 cm-1. Using the Scherrer equation, single crystal nano particle of ZnO was successfully obtained in the range of 38.49 nm to 50.70 nm for the sample prepared via the sol gel technique. By the self-combustion technique, the average dimension of the as-prepared sample is in the range of 34-49 nm. Further heat treatment resulted in a major change of the Raman shift corresponding to the single phase ZnO nano particles. The best samples were used as electromagnetic (EM) detectors. The EM detectors are polymer based composite which were prepared using a casting technique. © (2010) Trans Tech Publications, Switzerland.
format	Article
author	Yahya , N Daud , H Tajudding, N. A Daud, H. M. Shafie, A. Puspitasari, P.
author_facet	Yahya , N Daud , H Tajudding, N. A Daud, H. M. Shafie, A. Puspitasari, P.
author_sort	Yahya , N
title	Application of ZnO nanoparticles EM wave detector prepared by solgel and self-combustion techniques
title_short	Application of ZnO nanoparticles EM wave detector prepared by solgel and self-combustion techniques
title_full	Application of ZnO nanoparticles EM wave detector prepared by solgel and self-combustion techniques
title_fullStr	Application of ZnO nanoparticles EM wave detector prepared by solgel and self-combustion techniques
title_full_unstemmed	Application of ZnO nanoparticles EM wave detector prepared by solgel and self-combustion techniques
title_sort	application of zno nanoparticles em wave detector prepared by solgel and self-combustion techniques
publishDate	2010
url	http://eprints.utp.edu.my/7330/
_version_	1738655566769684480
score	13.211869

Application of ZnO nanoparticles EM wave detector prepared by solgel and self-combustion techniques

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