A detailed investigation of electronic and optical properties of the exciton, the biexciton and charged excitons in a multi-shell quantum dot nanocrystal

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dc.contributor.authorAktürk, Abdurrahman
dc.contributor.authorŞahin, Mehmet
dc.contributor.authorKoç, Fatih
dc.contributor.authorErdinç, Ahmet
dc.date.accessioned2020-03-26T18:49:09Z
dc.date.available2020-03-26T18:49:09Z
dc.date.issued2014
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractIn the present study, the electronic and optical properties of the exciton (X), the biexciton (XX) and charged excitons (X- and X+) in a multi-shell quantum dot nanocrystal have been systematically explored in detail. The electronic properties have been determined in the framework of the single-band effective mass approximation. For this purpose, the Poisson-Schrodinger equations have been solved self-consistently in the Hartree approximation. In the electronic structure calculations for XX, X- and X+, the quantum mechanical exchange-correlation potentials between particles of the same type have been taken into account in the local density approximation. Some optical parameters, such as the overlap integrals, recombination oscillator strengths, radiative lifetimes, etc, have been determined by using the single-particle energy levels and wavefunctions obtained. A different approximation, reported in Sahin and Koc 2013 Appl. Phys. Lett. 102 183103, has been used in the recombination oscillator strength calculations. The results have been presented comparatively as a function of the shell thicknesses, and the well widths and probable physical reasons underlying them have been discussed in detail.en_US
dc.description.sponsorshipTUBITAK TBAGTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [109T729]en_US
dc.description.sponsorshipThis work is a part of the MSc degree thesis prepared by AAkturk at the Physics Department of Selcuk University. This study was supported by TUBITAK TBAG, with project number 109T729.en_US
dc.identifier.doi10.1088/0022-3727/47/28/285301en_US
dc.identifier.issn0022-3727en_US
dc.identifier.issn1361-6463en_US
dc.identifier.issue28en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://dx.doi.org/10.1088/0022-3727/47/28/285301
dc.identifier.urihttps://hdl.handle.net/20.500.12395/30538
dc.identifier.volume47en_US
dc.identifier.wosWOS:000338721900008en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherIOP PUBLISHING LTDen_US
dc.relation.ispartofJOURNAL OF PHYSICS D-APPLIED PHYSICSen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectmulti-shell quantum doten_US
dc.subjectexcitonsen_US
dc.subjectoptical transitionsen_US
dc.titleA detailed investigation of electronic and optical properties of the exciton, the biexciton and charged excitons in a multi-shell quantum dot nanocrystalen_US
dc.typeArticleen_US

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