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Study of frequency dependent electrical properties of ZnO nanorods

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Main Authors: Muhammad Kashif, Muhammad Faroow, Uda, Hashim, Prof. Dr.
Other Authors: kashif_bme@yahoo.com
Format: Article
Language:English
Published: Emerald Group Publishing Limited 2014
Subjects:
Dielectric
Dielectric properties
Electrical impedance
Impedance
Sol-gel
ZnO nanorods
Online Access:http://dspace.unimap.edu.my:80/dspace/handle/123456789/33958
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spelling my.unimap-339582014-04-23T07:17:23Z Study of frequency dependent electrical properties of ZnO nanorods Muhammad Kashif, Muhammad Faroow Uda, Hashim, Prof. Dr. kashif_bme@yahoo.com uda@unimap.edu.my Dielectric Dielectric properties Electrical impedance Impedance Sol-gel ZnO nanorods Link to publisher's homepage at http://www.emeraldinsight.com/ Purpose - The purpose of the current research is to use impedance spectroscopy to study the AC parameters that varied with frequency such as impedance, dielectric constant and conductivity of ZnO nanorods MSM structure in the range of 1Hz to 10MHz under atmospheric conditions. Design/methodology/ approach - ZnO nanorods were grown on glass substrate using low cost sol-gel method. 0.35M seed solution was prepared by dissolving zinc acetate dihydrate in 2-methoxyethanol and monoethanolamine which acts as a stabilizer was added drop-wise. Prior to the deposition, glass slide was cut into pieces of 1.5cm×2cm. Ultra-sonication process is used to clean the glass substrate using acetone, ethanol, and de-ionized (DI) water for 5min. The prepared seed solution was coated on glass substrate using spin coater at spinning speed of 3000rpm for 30s and then dried at 250°C for 10min followed by annealing at 550°C for 2h. The hydrothermal growth was carried out in aqueous solution of zinc nitrate hexahydrate (25mM), hexamethyltetramine (25mM). Findings - ZnO nanorods were characterized using scanning electron microscope (SEM), X-ray diffraction (XRD) and impedance spectroscopy. The real part of impedance (Z') showed two semicircles that correspond to the distribution of the grain boundaries and electrode process. SEM image showed the densely packed ZnO nanorods on the surface of glass substrate, whereas XRD revealed the grown nanorods have c-axis orientation. The results show that the impedance dielectric increases as the frequency decreases while the conductivity showed the opposite behavior. Originality/value - This paper demonstrates the electron transport mechanism of ZnO nanorods at room temperature to understand the frequency dependent parameters. 2014-04-23T07:17:22Z 2014-04-23T07:17:22Z 2013 Article Microelectronics International, vol. 30(3), 2013, pages 134-137 1356-5362 http://www.emeraldinsight.com/journals.htm?articleid=17091645 http://dspace.unimap.edu.my:80/dspace/handle/123456789/33958 en Emerald Group Publishing Limited
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Dielectric
Dielectric properties
Electrical impedance
Impedance
Sol-gel
ZnO nanorods
spellingShingle Dielectric
Dielectric properties
Electrical impedance
Impedance
Sol-gel
ZnO nanorods
Muhammad Kashif, Muhammad Faroow
Uda, Hashim, Prof. Dr.
Study of frequency dependent electrical properties of ZnO nanorods
description Link to publisher's homepage at http://www.emeraldinsight.com/
author2 kashif_bme@yahoo.com
author_facet kashif_bme@yahoo.com
Muhammad Kashif, Muhammad Faroow
Uda, Hashim, Prof. Dr.
format Article
author Muhammad Kashif, Muhammad Faroow
Uda, Hashim, Prof. Dr.
author_sort Muhammad Kashif, Muhammad Faroow
title Study of frequency dependent electrical properties of ZnO nanorods
title_short Study of frequency dependent electrical properties of ZnO nanorods
title_full Study of frequency dependent electrical properties of ZnO nanorods
title_fullStr Study of frequency dependent electrical properties of ZnO nanorods
title_full_unstemmed Study of frequency dependent electrical properties of ZnO nanorods
title_sort study of frequency dependent electrical properties of zno nanorods
publisher Emerald Group Publishing Limited
publishDate 2014
url http://dspace.unimap.edu.my:80/dspace/handle/123456789/33958
_version_ 1643797359048523776
score 13.222552

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