Enhancing bandwidth and efficiency in GaN LEDs for VLC systems

Mohd Nor, Norhanis Aida and Wan Ibrahim, Wan Nur Amierha (2025) Enhancing bandwidth and efficiency in GaN LEDs for VLC systems. Jurnal OptoElektronik, 4 (NA). pp. 1-3. ISSN 2773-546X

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Abstract

Gallium nitride (GaN) light-emitting diodes (LEDs) are essential for visible light communication (VLC), enabling high-speed data transmission and energy-efficient lighting. However, c-plane GaN LEDs face limitations due to polarization fields and the quantum confined Stark effect (QCSE), restricting bandwidth and data rates. Advances in semi-polar and non-polar GaN structures have enhanced bandwidth, supporting gigabit-per-second VLC performance. Optimizing the active region through quantum well thinning and hybrid quantum dot integration further boosts modulation speeds. Additionally, Europium (Eu3+) doping provides high-color-purity red emission and faster recombination, improving bandwidth and reducing efficiency droop. This review high-lights these innovations for high- speed VLC systems.

Item Type:	Article (Journal)
Uncontrolled Keywords:	LED, VLC, Rare-Earth Doping, Europium (Eu3+), GaN-LED.
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800 Electronics. Computer engineering. Computer hardware. Photoelectronic devices T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800 Electronics. Computer engineering. Computer hardware. Photoelectronic devices > TK7885 Computer engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Science
Depositing User:	Dr Norhanis Aida Mohd Nor
Date Deposited:	01 Dec 2025 16:30
Last Modified:	01 Dec 2025 16:30
Queue Number:	2025-11-Q306
URI:	http://irep.iium.edu.my/id/eprint/124836

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