Characteristics of nanostructured CaxZn(1-x)Al2O4 thin films prepared by Sol-Gel method for GPS patch antennas

Characteristics of nanostructured CaxZn(1-x)Al2O4 thin films prepared by Sol-Gel method for GPS patch antennas

CaxZn(1-x)Al2O4 thin films (x = 0.00; 0.05; 0.10; 0.15 and 0.20) were prepared by sol-gel method with the substitution of Zn2+ by Ca2+ in the framework of ZnAl2O4. The effect of Ca addition on the structure and morphology of CaZnAl2O4 thin films was investigated by x-ray diffraction (XRD), field-emi...

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Main Authors: Wan Nasarudin Wan Jalal, Huda Abdullah, Mohd Syafiq Zulfakar, Sahbudin Shaari, Mohammad Thariqul Islam, Badariah Bais
Format: Article
Language:English
Published: Universiti Kebangsaan Malaysia 2014
Online Access:http://journalarticle.ukm.my/7171/
http://journalarticle.ukm.my/7171/
http://journalarticle.ukm.my/7171/1/04_Wan_Nasarudin.pdf
id ukm-7171
recordtype eprints
spelling ukm-71712016-12-14T06:43:17Z http://journalarticle.ukm.my/7171/ Characteristics of nanostructured CaxZn(1-x)Al2O4 thin films prepared by Sol-Gel method for GPS patch antennas Wan Nasarudin Wan Jalal, Huda Abdullah, Mohd Syafiq Zulfakar, Sahbudin Shaari, Mohammad Thariqul Islam, Badariah Bais, CaxZn(1-x)Al2O4 thin films (x = 0.00; 0.05; 0.10; 0.15 and 0.20) were prepared by sol-gel method with the substitution of Zn2+ by Ca2+ in the framework of ZnAl2O4. The effect of Ca addition on the structure and morphology of CaZnAl2O4 thin films was investigated by x-ray diffraction (XRD), field-emission scanning electron microscope (FESEM), energy-dispersive x-ray spectroscopy (EDX), ultra-violet visible (UV-Vis) and atomic force microscope (AFM). The XRD patterns showed the characteristic peaks of face-centred cubic (fcc) ZnAl2O4 and CaZnAl2O4. The addition of Ca increased the crystallite size from 8.9 to 30.2 nm. The bandgap of CaxZn(1-x)Al2O4 thin film was found in the range of 3.40 to 3.84 eV. SEM micrograph shows the morphology of all thin films is sphere-like, with the grain size increased from 33 to 123 nm. The AFM images show the roughness of surface morphology increased. The substitution of Zn2+ by Ca2+ increased the crystallite size, grain size and surface roughness which evidently increased the density (4.59 to 4.64 g/cm3) and dielectric constant (8.48 to 9.54). The composition of CaxZn(1-x)Al2O4 is considered as suitable material for GPS patch antennas. Universiti Kebangsaan Malaysia 2014-06 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/7171/1/04_Wan_Nasarudin.pdf Wan Nasarudin Wan Jalal, and Huda Abdullah, and Mohd Syafiq Zulfakar, and Sahbudin Shaari, and Mohammad Thariqul Islam, and Badariah Bais, (2014) Characteristics of nanostructured CaxZn(1-x)Al2O4 thin films prepared by Sol-Gel method for GPS patch antennas. Sains Malaysiana, 43 (6). pp. 833-842. ISSN 0126-6039 http://www.ukm.my/jsm/
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institution_category Local University
institution Universiti Kebangasaan Malaysia
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language English
description CaxZn(1-x)Al2O4 thin films (x = 0.00; 0.05; 0.10; 0.15 and 0.20) were prepared by sol-gel method with the substitution of Zn2+ by Ca2+ in the framework of ZnAl2O4. The effect of Ca addition on the structure and morphology of CaZnAl2O4 thin films was investigated by x-ray diffraction (XRD), field-emission scanning electron microscope (FESEM), energy-dispersive x-ray spectroscopy (EDX), ultra-violet visible (UV-Vis) and atomic force microscope (AFM). The XRD patterns showed the characteristic peaks of face-centred cubic (fcc) ZnAl2O4 and CaZnAl2O4. The addition of Ca increased the crystallite size from 8.9 to 30.2 nm. The bandgap of CaxZn(1-x)Al2O4 thin film was found in the range of 3.40 to 3.84 eV. SEM micrograph shows the morphology of all thin films is sphere-like, with the grain size increased from 33 to 123 nm. The AFM images show the roughness of surface morphology increased. The substitution of Zn2+ by Ca2+ increased the crystallite size, grain size and surface roughness which evidently increased the density (4.59 to 4.64 g/cm3) and dielectric constant (8.48 to 9.54). The composition of CaxZn(1-x)Al2O4 is considered as suitable material for GPS patch antennas.
format Article
author Wan Nasarudin Wan Jalal,
Huda Abdullah,
Mohd Syafiq Zulfakar,
Sahbudin Shaari,
Mohammad Thariqul Islam,
Badariah Bais,
spellingShingle Wan Nasarudin Wan Jalal,
Huda Abdullah,
Mohd Syafiq Zulfakar,
Sahbudin Shaari,
Mohammad Thariqul Islam,
Badariah Bais,
Characteristics of nanostructured CaxZn(1-x)Al2O4 thin films prepared by Sol-Gel method for GPS patch antennas
author_facet Wan Nasarudin Wan Jalal,
Huda Abdullah,
Mohd Syafiq Zulfakar,
Sahbudin Shaari,
Mohammad Thariqul Islam,
Badariah Bais,
author_sort Wan Nasarudin Wan Jalal,
title Characteristics of nanostructured CaxZn(1-x)Al2O4 thin films prepared by Sol-Gel method for GPS patch antennas
title_short Characteristics of nanostructured CaxZn(1-x)Al2O4 thin films prepared by Sol-Gel method for GPS patch antennas
title_full Characteristics of nanostructured CaxZn(1-x)Al2O4 thin films prepared by Sol-Gel method for GPS patch antennas
title_fullStr Characteristics of nanostructured CaxZn(1-x)Al2O4 thin films prepared by Sol-Gel method for GPS patch antennas
title_full_unstemmed Characteristics of nanostructured CaxZn(1-x)Al2O4 thin films prepared by Sol-Gel method for GPS patch antennas
title_sort characteristics of nanostructured caxzn(1-x)al2o4 thin films prepared by sol-gel method for gps patch antennas
publisher Universiti Kebangsaan Malaysia
publishDate 2014
url http://journalarticle.ukm.my/7171/
http://journalarticle.ukm.my/7171/
http://journalarticle.ukm.my/7171/1/04_Wan_Nasarudin.pdf
first_indexed 2023-09-18T19:48:56Z
last_indexed 2023-09-18T19:48:56Z
_version_ 1777406088567586816

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