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Coupling of plasmonic nanoparticles on a semiconductor substrate via a modified discrete dipole approximation method

2022Journal article Restricted access
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dc.contributor.authorCarvalho, Diogo F.
dc.contributor.authorMartins, Manuel A.
dc.contributor.authorFernandes, P. A.
dc.contributor.authorCorreia, M. Rosário P.
dc.date.accessioned2023-01-25T10:55:04Z
dc.date.embargo2031
dc.date.issued2022
dc.description.abstractUnderstanding the plasmonic coupling between a set of metallic nanoparticles (NPs) in a 2D array, and how a substrate affects such coupling, is fundamental for the development of optimized optoelectronic structures. Here, a simple semi-analytical procedure based on discrete dipole approximation (DDA) is reported to simulate the far-field and near-field properties of arrays of NPs, considering the coupling between particles, and the effect of the presence of a semiconductor substrate based on the image dipole approach. The method is validated for Ag NP dimers and single Ag NPs on a gallium nitride (GaN) substrate, a semiconductor widely used in optical devices, by comparison with the results obtained by the finite element method (FEM), indicating a good agreement in the weak coupling regime. Next, the method is applied to square and random arrays of Ag NPs on a GaN substrate. The increase in the surface density of NPs on a GaN substrate mainly results in a redshift of the dipolar resonance frequency and an increase in the near-field enhancement. This model, based on a single dipole approach, grants very low computational times, representing an advantage to predict the optical properties of large NP arrays on a semiconductor substrate for different applications.pt_PT
dc.description.sponsorshipThis work was partially developed within the scope of the projects i3N, UIDB/50025/2020 (BI/UI96/9549/2021 grant) & UIDP/50025/2020, and CICECO-Aveiro Institute of Materials, UIDB/50011/2020, UIDP/50011/2020 & LA/P/0006/2020, financed by national funds through the FCT/MEC. This research was also funded in part by the 2021.08228.BD FCT grant.pt_PT
dc.description.versioninfo:eu-repo/semantics/submittedVersionpt_PT
dc.identifier.doi10.1039/D2CP02446Bpt_PT
dc.identifier.urihttp://hdl.handle.net/10400.22/21847
dc.language.isoengpt_PT
dc.peerreviewednopt_PT
dc.publisherRSCpt_PT
dc.relationBI/UI96/9549/2021pt_PT
dc.relationInstitute of Nanostructures, Nanomodelling and Nanofabrication
dc.relationInstitute of Nanostructures, Nanomodelling and Nanofabrication
dc.relationCICECO-Aveiro Institute of Materials
dc.relationCICECO-Aveiro Institute of Materials
dc.relationDesenvolvimento de sistemas multifuncionais de elevada performance fotovoltaica e de sensoriamento de gases por integração de nanopartículas metálicas em células solares de perovskita
dc.relation.publisherversionhttps://pubs.rsc.org/en/content/articlelanding/2022/CP/D2CP02446Bpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.titleCoupling of plasmonic nanoparticles on a semiconductor substrate via a modified discrete dipole approximation methodpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleInstitute of Nanostructures, Nanomodelling and Nanofabrication
oaire.awardTitleInstitute of Nanostructures, Nanomodelling and Nanofabrication
oaire.awardTitleCICECO-Aveiro Institute of Materials
oaire.awardTitleCICECO-Aveiro Institute of Materials
oaire.awardTitleDesenvolvimento de sistemas multifuncionais de elevada performance fotovoltaica e de sensoriamento de gases por integração de nanopartículas metálicas em células solares de perovskita
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50025%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50025%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50011%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50011%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//2021.08228.BD/PT
oaire.citation.endPage19715pt_PT
oaire.citation.issue33pt_PT
oaire.citation.startPage19705pt_PT
oaire.citation.titlePhysical Chemistry Chemical Physicspt_PT
oaire.citation.volume24pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameFernandes
person.givenNamePaulo
person.identifier.orcid0000-0002-1860-7797
person.identifier.ridJ-5264-2013
person.identifier.scopus-author-id35568397500
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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