Staff View: First principles study and experimental investigation of graphene-molybdenum disulphide nanocomposites based passive saturable absorber

First principles study and experimental investigation of graphene-molybdenum disulphide nanocomposites based passive saturable absorber

Research on hybrid graphene with other two-dimensional materials has gained considerable attention owing to their potential applications beyond single components. Through our first principles analysis via density functional theory, graphene-molybdenum disulphide (MoS2) demonstrated a band gap openin...

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Main Authors:	Mohd. Halim, Siti Nabilah, Ahmad, Fauzan, Lokman, Muhammad Quisar, Sapingi, Husni Hani Jameela, Mohamad Taib, Mohamad Fariz, Wan Nawawi, Wan Mohd. Fazli, Yahaya, Hafizal, Abdul Rahman, Mohd. Azizi, Shafie, Suhaidi, Harun, Sulaiman Wadi
Format:	Article
Language:	English
Published:	MDPI 2022
Subjects:	TK Electrical engineering. Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/103550/1/FauzanAhmad2022_FirstPrinciplesStudyandExperimental.pdf http://eprints.utm.my/103550/ http://dx.doi.org/10.3390/photonics9100704
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spelling	my.utm.1035502023-11-19T07:41:07Z http://eprints.utm.my/103550/ First principles study and experimental investigation of graphene-molybdenum disulphide nanocomposites based passive saturable absorber Mohd. Halim, Siti Nabilah Ahmad, Fauzan Lokman, Muhammad Quisar Sapingi, Husni Hani Jameela Mohamad Taib, Mohamad Fariz Wan Nawawi, Wan Mohd. Fazli Yahaya, Hafizal Abdul Rahman, Mohd. Azizi Shafie, Suhaidi Harun, Sulaiman Wadi TK Electrical engineering. Electronics Nuclear engineering Research on hybrid graphene with other two-dimensional materials has gained considerable attention owing to their potential applications beyond single components. Through our first principles analysis via density functional theory, graphene-molybdenum disulphide (MoS2) demonstrated a band gap opening by 2 meV, from gapless graphene when MoS2 layer is introduced into the structure. The simulated graphene-MoS2 has a direct band gap situated at K point of Brillouin zone with preserved Dirac properties of graphene. The experimental studies on graphene-MoS2 also have been performed by preparing graphene-MoS2-chitin nanocomposite through facile liquid-phase exfoliation method. Apart from energy gap using Tauc relation, the physical morphology and nonlinear properties of the material were systematically characterized. Graphene-MoS2-chitin exhibits a modulation depth of 10.5%, which is lower than individual graphene but higher than individual MoS2. Further investigation on the material’s performance was done by integrating the fabricated film into Erbium-doped fiber laser. Stable nanosecond pulse laser operation was realized with graphene-MoS2-chitin hybrid saturable absorber. The pulse width was measured to be 156.4 ns with repetition rate of 1.89 MHz, corresponding to a peak power of 56.13 mW and pulse energy of 8.78 nJ. MDPI 2022-10 Article PeerReviewed application/pdf en http://eprints.utm.my/103550/1/FauzanAhmad2022_FirstPrinciplesStudyandExperimental.pdf Mohd. Halim, Siti Nabilah and Ahmad, Fauzan and Lokman, Muhammad Quisar and Sapingi, Husni Hani Jameela and Mohamad Taib, Mohamad Fariz and Wan Nawawi, Wan Mohd. Fazli and Yahaya, Hafizal and Abdul Rahman, Mohd. Azizi and Shafie, Suhaidi and Harun, Sulaiman Wadi (2022) First principles study and experimental investigation of graphene-molybdenum disulphide nanocomposites based passive saturable absorber. Photonics, 9 (10). pp. 1-18. ISSN 2304-6732 http://dx.doi.org/10.3390/photonics9100704 DOI:10.3390/photonics9100704
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
language	English
topic	TK Electrical engineering. Electronics Nuclear engineering
spellingShingle	TK Electrical engineering. Electronics Nuclear engineering Mohd. Halim, Siti Nabilah Ahmad, Fauzan Lokman, Muhammad Quisar Sapingi, Husni Hani Jameela Mohamad Taib, Mohamad Fariz Wan Nawawi, Wan Mohd. Fazli Yahaya, Hafizal Abdul Rahman, Mohd. Azizi Shafie, Suhaidi Harun, Sulaiman Wadi First principles study and experimental investigation of graphene-molybdenum disulphide nanocomposites based passive saturable absorber
description	Research on hybrid graphene with other two-dimensional materials has gained considerable attention owing to their potential applications beyond single components. Through our first principles analysis via density functional theory, graphene-molybdenum disulphide (MoS2) demonstrated a band gap opening by 2 meV, from gapless graphene when MoS2 layer is introduced into the structure. The simulated graphene-MoS2 has a direct band gap situated at K point of Brillouin zone with preserved Dirac properties of graphene. The experimental studies on graphene-MoS2 also have been performed by preparing graphene-MoS2-chitin nanocomposite through facile liquid-phase exfoliation method. Apart from energy gap using Tauc relation, the physical morphology and nonlinear properties of the material were systematically characterized. Graphene-MoS2-chitin exhibits a modulation depth of 10.5%, which is lower than individual graphene but higher than individual MoS2. Further investigation on the material’s performance was done by integrating the fabricated film into Erbium-doped fiber laser. Stable nanosecond pulse laser operation was realized with graphene-MoS2-chitin hybrid saturable absorber. The pulse width was measured to be 156.4 ns with repetition rate of 1.89 MHz, corresponding to a peak power of 56.13 mW and pulse energy of 8.78 nJ.
format	Article
author	Mohd. Halim, Siti Nabilah Ahmad, Fauzan Lokman, Muhammad Quisar Sapingi, Husni Hani Jameela Mohamad Taib, Mohamad Fariz Wan Nawawi, Wan Mohd. Fazli Yahaya, Hafizal Abdul Rahman, Mohd. Azizi Shafie, Suhaidi Harun, Sulaiman Wadi
author_facet	Mohd. Halim, Siti Nabilah Ahmad, Fauzan Lokman, Muhammad Quisar Sapingi, Husni Hani Jameela Mohamad Taib, Mohamad Fariz Wan Nawawi, Wan Mohd. Fazli Yahaya, Hafizal Abdul Rahman, Mohd. Azizi Shafie, Suhaidi Harun, Sulaiman Wadi
author_sort	Mohd. Halim, Siti Nabilah
title	First principles study and experimental investigation of graphene-molybdenum disulphide nanocomposites based passive saturable absorber
title_short	First principles study and experimental investigation of graphene-molybdenum disulphide nanocomposites based passive saturable absorber
title_full	First principles study and experimental investigation of graphene-molybdenum disulphide nanocomposites based passive saturable absorber
title_fullStr	First principles study and experimental investigation of graphene-molybdenum disulphide nanocomposites based passive saturable absorber
title_full_unstemmed	First principles study and experimental investigation of graphene-molybdenum disulphide nanocomposites based passive saturable absorber
title_sort	first principles study and experimental investigation of graphene-molybdenum disulphide nanocomposites based passive saturable absorber
publisher	MDPI
publishDate	2022
url	http://eprints.utm.my/103550/1/FauzanAhmad2022_FirstPrinciplesStudyandExperimental.pdf http://eprints.utm.my/103550/ http://dx.doi.org/10.3390/photonics9100704
_version_	1783876380873719808
score	13.211869

First principles study and experimental investigation of graphene-molybdenum disulphide nanocomposites based passive saturable absorber

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