Engineering the optical reflectance of randomly arranged self-assembled semiconductor nanowires

Simple item page
dc.contributor.authorDemontis, Valeria
dc.contributor.authorMarini, Andrea
dc.contributor.authorFloris, Francesco
dc.contributor.authorSorba, Lucia
dc.contributor.authorRossella, Francesco
dc.contributor.funderMinistero dell’Istruzione, dell’Università e della Ricercaen
dc.date.accessioned2021-11-18T11:44:44Z
dc.date.available2021-11-18T11:44:44Z
dc.date.issued2020-09-03
dc.date.updated2021-11-18T11:28:07Z
dc.description.abstractMetasurfaces made of arrays of vertically aligned semiconductor nanowires are suitable platforms for light management in optical and photonic applications. Here we report a design approach aimed at engineering the optical behavior of semiconductor nanowire ensembles randomly displaced on the substrate, in order to enhance modulation effects in their optical reflectance response. By resorting to analytical and numerical simulations we demonstrate that the combined implementation of a multi-shell layering together with a tapered designing on the individual nanowire offer new opportunities to tailor the optical reflectance oscillations in this kind of architectures. The simulation insights were compared to experimental results reported for self-assembled GaAs nanowires and GaAs/AlGaAs core-shell nanowires. The proposed approach is especially promising for epitaxially grown semiconductor nanowires, where the suggested design modifications can be easily implemented during the nanostructure growth.en
dc.description.sponsorshipMinistero dell’Istruzione, dell’Università e della Ricerca (PRIN 2017 for the Project "Photonic Extreme Learning Machine" (PELM), protocol number 20177PSCKT)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid020009en
dc.identifier.citationDemontis, V., Marini, A., Floris, F., Sorba, L., Rossella, F. (2020) 'Engineering the optical reflectance of randomly arranged self-assembled semiconductor nanowires', Nanoinnovation 2019, Rome, 11-14 June. AIP Conference Proceedings, 2257(1), 020009 (10pp). doi: 10.1063/5.0023675en
dc.identifier.doi10.1063/5.0023675en
dc.identifier.eissn1551-7616
dc.identifier.endpage10en
dc.identifier.issn0094-243X
dc.identifier.issued1en
dc.identifier.journaltitleAIP Conference Proceedingsen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/12226
dc.identifier.volume2257en
dc.language.isoenen
dc.publisherAIP Publishingen
dc.relation.ispartofNanoinnovation 2019, Rome, 11-14 June
dc.rights© 2020, the Authors. Published by AIP Publishing.en
dc.subjectSemiconductor nanowire ensemblesen
dc.subjectModulation effectsen
dc.subjectOptical reflectance responseen
dc.subjectOptical reflectance oscillationsen
dc.titleEngineering the optical reflectance of randomly arranged self-assembled semiconductor nanowiresen
dc.typeConference itemen
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
5.0023675.pdf
Size:
1.6 MB
Format:
Adobe Portable Document Format
Description:
Published Version
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
2.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Tyndall National Institute - Conference Items