Influence of electron irradiation on the electroluminescence spectra of white InGaN light emitting diodes

We analyze the influence of electron irradiation on the electroluminescence spectra of white light emitting diodes (LEDs) based on indium gallium nitride. Three different irradiation fluences, 9.90×1015 , 1.32×1016 and 1.98×1016 cm-2 , are studied. For all 27 samples of LEDs of the commercially...

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Main Authors:	Hedzir, Anati Syahirah, Sallehuddin, N. N., Saidin, Norazlina, Hasbullah, Nurul Fadzlin
Format:	Article
Language:	English English English
Published:	Institute of Physical Optics 2018
Subjects:	T Technology (General) TK Electrical engineering. Electronics Nuclear engineering
Online Access:	http://irep.iium.edu.my/66909/ http://irep.iium.edu.my/66909/ http://irep.iium.edu.my/66909/ http://irep.iium.edu.my/66909/1/66909_Influence%20of%20electron%20irradiation%20on%20the%20electroluminescence%20_article.pdf http://irep.iium.edu.my/66909/2/66909_Influence%20of%20electron%20irradiation%20on%20the%20electroluminescence%20_scopus.pdf http://irep.iium.edu.my/66909/13/66909_Influence%20of%20electron%20irradiation_wos.pdf

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spelling	iium-669092018-12-06T04:17:14Z http://irep.iium.edu.my/66909/ Influence of electron irradiation on the electroluminescence spectra of white InGaN light emitting diodes Hedzir, Anati Syahirah Sallehuddin, N. N. Saidin, Norazlina Hasbullah, Nurul Fadzlin T Technology (General) TK Electrical engineering. Electronics Nuclear engineering We analyze the influence of electron irradiation on the electroluminescence spectra of white light emitting diodes (LEDs) based on indium gallium nitride. Three different irradiation fluences, 9.90×1015 , 1.32×1016 and 1.98×1016 cm-2 , are studied. For all 27 samples of LEDs of the commercially available models VAOL-5GWY4, VAOL-10GWY4 and OVL-3321, we observe a significant decrease in the emission light intensity after the irradiation. Degradation of the overall light intensity is believed to be due to irradiation-induced defects which act as nonradiative recombination centres. We also study the emission intensities and the central wavelengths of the LED samples subjected to electron irradiation under conditions of different injection currents. After irradiation with the fluence 1.98×1016 cm-2 , the blue peak located at 453 nm experiences severe degradation, so that only the yellow luminescence at 590 nm remains. This yellow band is related to radiative transitions from donor bands to the levels associated with gallium vacancies Institute of Physical Optics 2018 Article PeerReviewed application/pdf en http://irep.iium.edu.my/66909/1/66909_Influence%20of%20electron%20irradiation%20on%20the%20electroluminescence%20_article.pdf application/pdf en http://irep.iium.edu.my/66909/2/66909_Influence%20of%20electron%20irradiation%20on%20the%20electroluminescence%20_scopus.pdf application/pdf en http://irep.iium.edu.my/66909/13/66909_Influence%20of%20electron%20irradiation_wos.pdf Hedzir, Anati Syahirah and Sallehuddin, N. N. and Saidin, Norazlina and Hasbullah, Nurul Fadzlin (2018) Influence of electron irradiation on the electroluminescence spectra of white InGaN light emitting diodes. Ukrainian Journal of Physical Optics, 19 (3). pp. 159-164. ISSN 1609-1833 E-ISSN 1816-2002 http://www.ifo.lviv.ua/journal/UJPO_PDF/2018_3/0403_2018.pdf 10.3116/16091833/19/3/159/2018
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	T Technology (General) TK Electrical engineering. Electronics Nuclear engineering
spellingShingle	T Technology (General) TK Electrical engineering. Electronics Nuclear engineering Hedzir, Anati Syahirah Sallehuddin, N. N. Saidin, Norazlina Hasbullah, Nurul Fadzlin Influence of electron irradiation on the electroluminescence spectra of white InGaN light emitting diodes
description	We analyze the influence of electron irradiation on the electroluminescence spectra of white light emitting diodes (LEDs) based on indium gallium nitride. Three different irradiation fluences, 9.90×1015 , 1.32×1016 and 1.98×1016 cm-2 , are studied. For all 27 samples of LEDs of the commercially available models VAOL-5GWY4, VAOL-10GWY4 and OVL-3321, we observe a significant decrease in the emission light intensity after the irradiation. Degradation of the overall light intensity is believed to be due to irradiation-induced defects which act as nonradiative recombination centres. We also study the emission intensities and the central wavelengths of the LED samples subjected to electron irradiation under conditions of different injection currents. After irradiation with the fluence 1.98×1016 cm-2 , the blue peak located at 453 nm experiences severe degradation, so that only the yellow luminescence at 590 nm remains. This yellow band is related to radiative transitions from donor bands to the levels associated with gallium vacancies
format	Article
author	Hedzir, Anati Syahirah Sallehuddin, N. N. Saidin, Norazlina Hasbullah, Nurul Fadzlin
author_facet	Hedzir, Anati Syahirah Sallehuddin, N. N. Saidin, Norazlina Hasbullah, Nurul Fadzlin
author_sort	Hedzir, Anati Syahirah
title	Influence of electron irradiation on the electroluminescence spectra of white InGaN light emitting diodes
title_short	Influence of electron irradiation on the electroluminescence spectra of white InGaN light emitting diodes
title_full	Influence of electron irradiation on the electroluminescence spectra of white InGaN light emitting diodes
title_fullStr	Influence of electron irradiation on the electroluminescence spectra of white InGaN light emitting diodes
title_full_unstemmed	Influence of electron irradiation on the electroluminescence spectra of white InGaN light emitting diodes
title_sort	influence of electron irradiation on the electroluminescence spectra of white ingan light emitting diodes
publisher	Institute of Physical Optics
publishDate	2018
url	http://irep.iium.edu.my/66909/ http://irep.iium.edu.my/66909/ http://irep.iium.edu.my/66909/ http://irep.iium.edu.my/66909/1/66909_Influence%20of%20electron%20irradiation%20on%20the%20electroluminescence%20_article.pdf http://irep.iium.edu.my/66909/2/66909_Influence%20of%20electron%20irradiation%20on%20the%20electroluminescence%20_scopus.pdf http://irep.iium.edu.my/66909/13/66909_Influence%20of%20electron%20irradiation_wos.pdf
first_indexed	2023-09-18T21:35:00Z
last_indexed	2023-09-18T21:35:00Z
_version_	1777412761288966144

Influence of electron irradiation on the electroluminescence spectra of white InGaN light emitting diodes

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