The electronic and optical properties of a triexciton in CdSe/ZnS core/shell quantum dot nanocrystals

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dc.contributor.authorAktürk, Abdurrahman
dc.contributor.authorTaş, Hatice
dc.contributor.authorKöksal, Koray
dc.contributor.authorŞahin, Mehmet
dc.date.accessioned2020-03-26T19:31:41Z
dc.date.available2020-03-26T19:31:41Z
dc.date.issued2016
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractIn the study, we aim to investigate the electronic and optical properties of single excitons, biexcions and triexcitons in a CdSe/ZnS core/shell quantum dot nanocrystal. The electronic structure has been determined by solving of the Poisson-Schrodinger equations self-consistently. In calculations, the exchange-correlation effects between identical particles have been taken into account in the frame of the local density approximation. We have demonstrated that the optical properties of triexciton systems are remarkably different from the single and biexciton systems. Absorption peaks or transition energies of the triexciton system are well separated from those of single- and bi-exciton systems. We have observed that the core-radius dependent transition energy variations of triexcitons are higher when compared with single- and bi-excitonic systems. The transition energy shifts of double and triple excitons with respect to the single exciton have been calculated as a function of the core radius and we have shown that the energy shifts are inversely proportional with the radius. We have also investigated the radius-dependent changes in binding energies and lifetimes of the structures and the comparative results have been discussed in a detail manner.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) TBAGTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [109T729]en_US
dc.description.sponsorshipThis work was supported by The Scientific and Technological Research Council of Turkey (TUBITAK) TBAG [project number 109T729].en_US
dc.identifier.doi10.1080/14786435.2016.1143129en_US
dc.identifier.endpage595en_US
dc.identifier.issn1478-6435en_US
dc.identifier.issn1478-6443en_US
dc.identifier.issue6en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage584en_US
dc.identifier.urihttps://dx.doi.org/10.1080/14786435.2016.1143129
dc.identifier.urihttps://hdl.handle.net/20.500.12395/34093
dc.identifier.volume96en_US
dc.identifier.wosWOS:000372097300006en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherTAYLOR & FRANCIS LTDen_US
dc.relation.ispartofPHILOSOPHICAL MAGAZINEen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectsemiconductor nanocrystalsen_US
dc.subjectQuantum dotsen_US
dc.subjectmultiexciton in nanocrystalsen_US
dc.titleThe electronic and optical properties of a triexciton in CdSe/ZnS core/shell quantum dot nanocrystalsen_US
dc.typeArticleen_US

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