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dc.contributor.authorAbdelazim, Nema M.
dc.contributor.authorFong, Matthew J.
dc.contributor.authorMcGrath, Thomas
dc.contributor.authorWoodhead, Christopher S.
dc.contributor.authorAl-Saymari, Furat
dc.contributor.authorBagci, Ibrahim E.
dc.contributor.authorJones, Alex T.
dc.contributor.authorWang, Xintai
dc.contributor.authorYoung, Robert J.
dc.date.accessioned2021-01-15T16:14:36Z
dc.date.available2021-01-15T16:14:36Z
dc.date.issued2021-01-15
dc.date.submitted2020-05-28
dc.identifier.others41598-020-79644-w
dc.identifier.other79644
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/316232
dc.description.abstractAbstract: Nanoscale variations in the structure and composition of an object are an enticing basis for verifying its identity, due to the physical complexity of attempting to reproduce such a system. The biggest practical challenge for nanoscale authentication lies in producing a system that can be assessed with a facile measurement. Here, a system is presented in which InP/ZnS quantum dots (QDs) are randomly distributed on a surface of an aluminium-coated substrate with gold nanoparticles (Au NPs). Variations in the local arrangement of the QDs and NPs is shown to lead to interactions between them, which can suppress or enhance fluorescence from the QDs. This position-dependent interaction can be mapped, allowing intensity, emission dynamics, and/or wavelength variations to be used to uniquely identify a specific sample at the nanoscale with a far-field optical measurement. This demonstration could pave the way to producing robust anti-counterfeiting devices.
dc.languageen
dc.publisherNature Publishing Group UK
dc.rightsAttribution 4.0 International (CC BY 4.0)en
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subjectArticle
dc.subject/639/624/399/354
dc.subject/639/624/1075/401
dc.subject/639/766/400/1021
dc.subject/639/301/357/354
dc.subject/639/301/357/1017
dc.subjectarticle
dc.titleHotspot generation for unique identification with nanomaterials
dc.typeArticle
dc.date.updated2021-01-15T16:14:36Z
prism.issueIdentifier1
prism.publicationNameScientific Reports
prism.volume11
dc.identifier.doi10.17863/CAM.63341
dcterms.dateAccepted2020-11-30
rioxxterms.versionofrecord10.1038/s41598-020-79644-w
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/
dc.identifier.eissn2045-2322
pubs.funder-project-idRoyal Society (UF160721)
pubs.funder-project-idAir Force Office of Scientific Research (FA9550-19-1-0397)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/K50421X/1)


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Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's licence is described as Attribution 4.0 International (CC BY 4.0)