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Feasibility of integrating bimetallic au-ag non-alloys nanoparticles embedded in reduced graphene oxide photodetector

To coordinate the resonant wavelength of the plasmonic nanoparticles (NPs), the emission band of the reduced graphene oxide (rGO) photodetector at the NIR-region is crucial for the optimal plasmon-enhanced luminescence in the device. In contrast to monometallic NPs, where limits the dimensions and e...

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Main Authors: Rohizat, Nurul Syazwani, Mohamad Ismail, Muhammad Nur Syafiq, Ahmad Fahri, Muhammad Aiman Saufi, Tan, Chee Leong, Zakaria, Rozalina
Format: Article
Published: SpringerOpen 2023
Subjects:
Q Science (General)
QC Physics
Online Access:http://eprints.um.edu.my/38547/
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spelling my.um.eprints.385472024-11-04T03:59:01Z http://eprints.um.edu.my/38547/ Feasibility of integrating bimetallic au-ag non-alloys nanoparticles embedded in reduced graphene oxide photodetector Rohizat, Nurul Syazwani Mohamad Ismail, Muhammad Nur Syafiq Ahmad Fahri, Muhammad Aiman Saufi Tan, Chee Leong Zakaria, Rozalina Q Science (General) QC Physics To coordinate the resonant wavelength of the plasmonic nanoparticles (NPs), the emission band of the reduced graphene oxide (rGO) photodetector at the NIR-region is crucial for the optimal plasmon-enhanced luminescence in the device. In contrast to monometallic NPs, where limits the dimensions and extended resonant wavelength, we integrated an Au-Ag bimetallic NPs (BMNPs) to enable resonance tuning at the longer wavelength at the excitation source of 785 nm. These features showed an increase in radiative recombination rates as well as the quantum yield efficiency of the device. The BMNPs were produced from the dewetting process of 600 degrees C and 500 degrees C, both at 1 min after the deposition thickness layer of Au (8 nm) and Ag (10 nm) on the Si substrate using the electron-beam evaporation process. Our BMNPs-rGO photodetector exhibited the responsivity of 2.25 center dot A W-1, Jones of specific detectivity of 2.45x10(11)Jones, and external quantum efficiency (EQE) of 356%. The rise time and fall time f SpringerOpen 2023-03 Article PeerReviewed Rohizat, Nurul Syazwani and Mohamad Ismail, Muhammad Nur Syafiq and Ahmad Fahri, Muhammad Aiman Saufi and Tan, Chee Leong and Zakaria, Rozalina (2023) Feasibility of integrating bimetallic au-ag non-alloys nanoparticles embedded in reduced graphene oxide photodetector. Photonic Sensors, 13 (3). ISSN 1674-9251, DOI https://doi.org/10.1007/s13320-023-0679-8 <https://doi.org/10.1007/s13320-023-0679-8>. 10.1007/s13320-023-0679-8
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic Q Science (General)
QC Physics
spellingShingle Q Science (General)
QC Physics
Rohizat, Nurul Syazwani
Mohamad Ismail, Muhammad Nur Syafiq
Ahmad Fahri, Muhammad Aiman Saufi
Tan, Chee Leong
Zakaria, Rozalina
Feasibility of integrating bimetallic au-ag non-alloys nanoparticles embedded in reduced graphene oxide photodetector
description To coordinate the resonant wavelength of the plasmonic nanoparticles (NPs), the emission band of the reduced graphene oxide (rGO) photodetector at the NIR-region is crucial for the optimal plasmon-enhanced luminescence in the device. In contrast to monometallic NPs, where limits the dimensions and extended resonant wavelength, we integrated an Au-Ag bimetallic NPs (BMNPs) to enable resonance tuning at the longer wavelength at the excitation source of 785 nm. These features showed an increase in radiative recombination rates as well as the quantum yield efficiency of the device. The BMNPs were produced from the dewetting process of 600 degrees C and 500 degrees C, both at 1 min after the deposition thickness layer of Au (8 nm) and Ag (10 nm) on the Si substrate using the electron-beam evaporation process. Our BMNPs-rGO photodetector exhibited the responsivity of 2.25 center dot A W-1, Jones of specific detectivity of 2.45x10(11)Jones, and external quantum efficiency (EQE) of 356%. The rise time and fall time f
format Article
author Rohizat, Nurul Syazwani
Mohamad Ismail, Muhammad Nur Syafiq
Ahmad Fahri, Muhammad Aiman Saufi
Tan, Chee Leong
Zakaria, Rozalina
author_facet Rohizat, Nurul Syazwani
Mohamad Ismail, Muhammad Nur Syafiq
Ahmad Fahri, Muhammad Aiman Saufi
Tan, Chee Leong
Zakaria, Rozalina
author_sort Rohizat, Nurul Syazwani
title Feasibility of integrating bimetallic au-ag non-alloys nanoparticles embedded in reduced graphene oxide photodetector
title_short Feasibility of integrating bimetallic au-ag non-alloys nanoparticles embedded in reduced graphene oxide photodetector
title_full Feasibility of integrating bimetallic au-ag non-alloys nanoparticles embedded in reduced graphene oxide photodetector
title_fullStr Feasibility of integrating bimetallic au-ag non-alloys nanoparticles embedded in reduced graphene oxide photodetector
title_full_unstemmed Feasibility of integrating bimetallic au-ag non-alloys nanoparticles embedded in reduced graphene oxide photodetector
title_sort feasibility of integrating bimetallic au-ag non-alloys nanoparticles embedded in reduced graphene oxide photodetector
publisher SpringerOpen
publishDate 2023
url http://eprints.um.edu.my/38547/
_version_ 1814933218510503936
score 13.211869

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