Staff View: Effect of gamma radiation on structural and optical properties of ZnO and Mg-Doped ZnO films paired with monte carlo simulation

Effect of gamma radiation on structural and optical properties of ZnO and Mg-Doped ZnO films paired with monte carlo simulation

In space, geostationary electronics located within the outer van Allen radiation belt are vulnerable to gamma radiation exposure. In terms of application, implementing an electronic system in a high radiation environment is impossible via conventional engineering materials such as metal alloys as th...

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Main Authors:	Mivolil Duinong, Rosfayanti Rasmidi, Fuei, Pien Chee, Pak, Yan Moh, Saafie Salleh, Khairul Anuar Mohd Salleh, Sofian Ibrahim
Format:	Article
Language:	English
Published:	MDPI 2022
Subjects:	Q1-390 Science (General) QC1-999 Physics
Online Access:	https://eprints.ums.edu.my/id/eprint/42294/2/FULL%20TEXT.pdf https://eprints.ums.edu.my/id/eprint/42294/ https://doi.org/10.3390/coatings12101590
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spelling	my.ums.eprints.422942024-12-16T03:48:36Z https://eprints.ums.edu.my/id/eprint/42294/ Effect of gamma radiation on structural and optical properties of ZnO and Mg-Doped ZnO films paired with monte carlo simulation Mivolil Duinong Rosfayanti Rasmidi Fuei, Pien Chee Pak, Yan Moh Saafie Salleh Khairul Anuar Mohd Salleh Sofian Ibrahim Q1-390 Science (General) QC1-999 Physics In space, geostationary electronics located within the outer van Allen radiation belt are vulnerable to gamma radiation exposure. In terms of application, implementing an electronic system in a high radiation environment is impossible via conventional engineering materials such as metal alloys as they are prone to radiation damage. Exposure to such radiation causes degradation and structural defects within the semiconductor component, significantly changing their overall density. The changes in the density will then cause electronic failure, known as the single event phenomena. Thus, the radiation response of material must be thoroughly investigated before the material is applied in a harsh radiation environment, specifically for flexible space borne electronic application. In this work, potential candidates for space-borne application devices: zinc oxide (ZnO) and Mgdoped ZnO thin film with a film thickness of 300 nm, were deposited onto an indium tin oxide (ITO) substrate via radio frequency (RF) sputtering method. The fabricated films were then irradiated by Co-60 gamma ray at a dose rate of 2 kGy/hr. The total ionizing dose (TID) effect of ZnO and Mg-doped ZnO thin films were then studied. From the results obtained, degradation towards the surface morphology, optical properties, and lattice parameters caused by increasing TID, ranging from 10 kGy–300 kGy, were evaluated. The alteration can be observed on the morphological changes due to the change in the roughness root mean square (RMS) with TID, while structural changes show increased strain and decreased crystallite size. For the optical properties, band gap tends to decrease with increased dose in response to colour centre (Farbe centre) effects resulting in a decrease in transmittance spectra of the fabricated films. MDPI 2022 Article NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/42294/2/FULL%20TEXT.pdf Mivolil Duinong and Rosfayanti Rasmidi and Fuei, Pien Chee and Pak, Yan Moh and Saafie Salleh and Khairul Anuar Mohd Salleh and Sofian Ibrahim (2022) Effect of gamma radiation on structural and optical properties of ZnO and Mg-Doped ZnO films paired with monte carlo simulation. Coatings, 12. pp. 1-15. https://doi.org/10.3390/coatings12101590
institution	Universiti Malaysia Sabah
building	UMS Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaysia Sabah
content_source	UMS Institutional Repository
url_provider	http://eprints.ums.edu.my/
language	English
topic	Q1-390 Science (General) QC1-999 Physics
spellingShingle	Q1-390 Science (General) QC1-999 Physics Mivolil Duinong Rosfayanti Rasmidi Fuei, Pien Chee Pak, Yan Moh Saafie Salleh Khairul Anuar Mohd Salleh Sofian Ibrahim Effect of gamma radiation on structural and optical properties of ZnO and Mg-Doped ZnO films paired with monte carlo simulation
description	In space, geostationary electronics located within the outer van Allen radiation belt are vulnerable to gamma radiation exposure. In terms of application, implementing an electronic system in a high radiation environment is impossible via conventional engineering materials such as metal alloys as they are prone to radiation damage. Exposure to such radiation causes degradation and structural defects within the semiconductor component, significantly changing their overall density. The changes in the density will then cause electronic failure, known as the single event phenomena. Thus, the radiation response of material must be thoroughly investigated before the material is applied in a harsh radiation environment, specifically for flexible space borne electronic application. In this work, potential candidates for space-borne application devices: zinc oxide (ZnO) and Mgdoped ZnO thin film with a film thickness of 300 nm, were deposited onto an indium tin oxide (ITO) substrate via radio frequency (RF) sputtering method. The fabricated films were then irradiated by Co-60 gamma ray at a dose rate of 2 kGy/hr. The total ionizing dose (TID) effect of ZnO and Mg-doped ZnO thin films were then studied. From the results obtained, degradation towards the surface morphology, optical properties, and lattice parameters caused by increasing TID, ranging from 10 kGy–300 kGy, were evaluated. The alteration can be observed on the morphological changes due to the change in the roughness root mean square (RMS) with TID, while structural changes show increased strain and decreased crystallite size. For the optical properties, band gap tends to decrease with increased dose in response to colour centre (Farbe centre) effects resulting in a decrease in transmittance spectra of the fabricated films.
format	Article
author	Mivolil Duinong Rosfayanti Rasmidi Fuei, Pien Chee Pak, Yan Moh Saafie Salleh Khairul Anuar Mohd Salleh Sofian Ibrahim
author_facet	Mivolil Duinong Rosfayanti Rasmidi Fuei, Pien Chee Pak, Yan Moh Saafie Salleh Khairul Anuar Mohd Salleh Sofian Ibrahim
author_sort	Mivolil Duinong
title	Effect of gamma radiation on structural and optical properties of ZnO and Mg-Doped ZnO films paired with monte carlo simulation
title_short	Effect of gamma radiation on structural and optical properties of ZnO and Mg-Doped ZnO films paired with monte carlo simulation
title_full	Effect of gamma radiation on structural and optical properties of ZnO and Mg-Doped ZnO films paired with monte carlo simulation
title_fullStr	Effect of gamma radiation on structural and optical properties of ZnO and Mg-Doped ZnO films paired with monte carlo simulation
title_full_unstemmed	Effect of gamma radiation on structural and optical properties of ZnO and Mg-Doped ZnO films paired with monte carlo simulation
title_sort	effect of gamma radiation on structural and optical properties of zno and mg-doped zno films paired with monte carlo simulation
publisher	MDPI
publishDate	2022
url	https://eprints.ums.edu.my/id/eprint/42294/2/FULL%20TEXT.pdf https://eprints.ums.edu.my/id/eprint/42294/ https://doi.org/10.3390/coatings12101590
_version_	1818835202438332416
score	13.223943

Effect of gamma radiation on structural and optical properties of ZnO and Mg-Doped ZnO films paired with monte carlo simulation

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