Structural, Optical And Thermal Properties Of Alnb Multilayer Composite Via Stacking Method For Led Thermal Application

The continuous demand for light-emitting diodes (LED) is increasing as it is a retrofitting option for in-efficient incandescent, fluorescent lights (FL, CFL) and halogen lamps. However, their performance, reliability, and operational life are affected by accumulation of excessive heat within the LE...

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Main Author:	El Ladan, Abdulkarim Hamza
Format:	Thesis
Language:	English
Published:	2023
Subjects:	QC1 Physics (General)
Online Access:	http://eprints.usm.my/60419/1/ABDULKARIM%20HAMZA%20EL%20LADAN%20-%20TESIS%20cut.pdf
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id	my-usm-ep.60419
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spelling	my-usm-ep.604192024-04-24T06:40:36Z Structural, Optical And Thermal Properties Of Alnb Multilayer Composite Via Stacking Method For Led Thermal Application 2023-01 El Ladan, Abdulkarim Hamza QC1 Physics (General) The continuous demand for light-emitting diodes (LED) is increasing as it is a retrofitting option for in-efficient incandescent, fluorescent lights (FL, CFL) and halogen lamps. However, their performance, reliability, and operational life are affected by accumulation of excessive heat within the LED, thus, the need to develop a unique, robust, and versatile low thermal resistance (Rth) solid thermal interface material (STIM) cannot be over emphasized. In this research work, AlNB nanocomposite thin films are synthesized using reactive sputtering on aluminium substrates and performance analysis (thermal/optical) of LED mounted on the grown composites is conducted. The synthesis is carried out in three different configurations named as composites (I, II and III). Composite (I) is grown based on Al and B targets with varied thickness ratios using four different (N2:Ar) gas ratios and annealing temperature (200-400°C), while composites (II and III) were based on AlN and B targets with fixed thickness ratios in three different stacking sequence at fixed gas ratio of 12:8 and annealing temperature of 400°C. The structural characterizations are studied using High-resolution X-ray diffractometer (XRD) and confirmed the presence of (225) phase of c-AlN, (216) phase of c-BN and (216) phase of c-Al structures. 2023-01 Thesis http://eprints.usm.my/60419/ http://eprints.usm.my/60419/1/ABDULKARIM%20HAMZA%20EL%20LADAN%20-%20TESIS%20cut.pdf application/pdf en public phd doctoral Universiti Sains Malaysia Pusat Pengajian Sains Fizik
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	QC1 Physics (General)
spellingShingle	QC1 Physics (General) El Ladan, Abdulkarim Hamza Structural, Optical And Thermal Properties Of Alnb Multilayer Composite Via Stacking Method For Led Thermal Application
description	The continuous demand for light-emitting diodes (LED) is increasing as it is a retrofitting option for in-efficient incandescent, fluorescent lights (FL, CFL) and halogen lamps. However, their performance, reliability, and operational life are affected by accumulation of excessive heat within the LED, thus, the need to develop a unique, robust, and versatile low thermal resistance (Rth) solid thermal interface material (STIM) cannot be over emphasized. In this research work, AlNB nanocomposite thin films are synthesized using reactive sputtering on aluminium substrates and performance analysis (thermal/optical) of LED mounted on the grown composites is conducted. The synthesis is carried out in three different configurations named as composites (I, II and III). Composite (I) is grown based on Al and B targets with varied thickness ratios using four different (N2:Ar) gas ratios and annealing temperature (200-400°C), while composites (II and III) were based on AlN and B targets with fixed thickness ratios in three different stacking sequence at fixed gas ratio of 12:8 and annealing temperature of 400°C. The structural characterizations are studied using High-resolution X-ray diffractometer (XRD) and confirmed the presence of (225) phase of c-AlN, (216) phase of c-BN and (216) phase of c-Al structures.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	El Ladan, Abdulkarim Hamza
author_facet	El Ladan, Abdulkarim Hamza
author_sort	El Ladan, Abdulkarim Hamza
title	Structural, Optical And Thermal Properties Of Alnb Multilayer Composite Via Stacking Method For Led Thermal Application
title_short	Structural, Optical And Thermal Properties Of Alnb Multilayer Composite Via Stacking Method For Led Thermal Application
title_full	Structural, Optical And Thermal Properties Of Alnb Multilayer Composite Via Stacking Method For Led Thermal Application
title_fullStr	Structural, Optical And Thermal Properties Of Alnb Multilayer Composite Via Stacking Method For Led Thermal Application
title_full_unstemmed	Structural, Optical And Thermal Properties Of Alnb Multilayer Composite Via Stacking Method For Led Thermal Application
title_sort	structural, optical and thermal properties of alnb multilayer composite via stacking method for led thermal application
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Sains Fizik
publishDate	2023
url	http://eprints.usm.my/60419/1/ABDULKARIM%20HAMZA%20EL%20LADAN%20-%20TESIS%20cut.pdf
_version_	1804888933158354944

Structural, Optical And Thermal Properties Of Alnb Multilayer Composite Via Stacking Method For Led Thermal Application

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