Graphene Hybrid Metasurfaces for Mid-Infrared Molecular Sensors.
gas sensor
graphene
metasurface
mid-infrared
photodetector
Journal
Nanomaterials (Basel, Switzerland)
ISSN: 2079-4991
Titre abrégé: Nanomaterials (Basel)
Pays: Switzerland
ID NLM: 101610216
Informations de publication
Date de publication:
20 Jul 2023
20 Jul 2023
Historique:
received:
15
06
2023
revised:
12
07
2023
accepted:
18
07
2023
medline:
29
7
2023
pubmed:
29
7
2023
entrez:
29
7
2023
Statut:
epublish
Résumé
We integrated graphene with asymmetric metal metasurfaces and optimised the geometry dependent photoresponse towards optoelectronic molecular sensor devices. Through careful tuning and characterisation, combining finite-difference time-domain simulations, electron-beam lithography-based nanofabrication, and micro-Fourier transform infrared spectroscopy, we achieved precise control over the mid-infrared peak response wavelengths, transmittance, and reflectance. Our methods enabled simple, reproducible and targeted mid-infrared molecular sensing over a wide range of geometrical parameters. With ultimate minimization potential down to atomic thicknesses and a diverse range of complimentary nanomaterial combinations, we anticipate a high impact potential of these technologies for environmental monitoring, threat detection, and point of care diagnostics.
Identifiants
pubmed: 37513124
pii: nano13142113
doi: 10.3390/nano13142113
pmc: PMC10385330
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : European Regional Development Fund
ID : 1.1.1.2/VIAA/4/20/740
Organisme : VINNOVA
ID : 2020-00797
Organisme : European Commission
ID : 739508
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