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Origin of luminescence quenching in structures containing CdSe/ZnSe quantum dots with a few Mn2+ ions

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cris.lastimport.scopus2024-02-12T20:50:30Z
dc.abstract.enWe present a detailed spectroscopic study of photoluminescence quenching in epitaxial structures containing CdSe/ZnSe quantum dots doped with low concentration of Mn2+ ions. Our time-resolved and time-integrated experiments reveal the origin of the quenching observed in macro-photoluminescence studies of ensembles of such dots. We show that incorporation of even a few ions to an individual dot does not quench its luminescence effectively, although some fingerprints of expected spin-dependent quenching are visible. At the same time, the presence of Mn2+ ions in the sample significantly affects the luminescence intensity of the wetting layer, resulting in a quenching of the global luminescence from studied structure. On the other hand, the luminescence decay dynamics are found to be independent of the presence ofMn2+ ions, which suggests that the observed quenching
dc.affiliationUniwersytet Warszawski
dc.contributor.authorGoryca, Mateusz
dc.contributor.authorOreszczuk, Kacper
dc.contributor.authorSmoleński, Tomasz
dc.contributor.authorPacuski, Wojciech
dc.contributor.authorNawrocki, Michał
dc.contributor.authorKossacki, Piotr
dc.date.accessioned2024-01-25T16:09:28Z
dc.date.available2024-01-25T16:09:28Z
dc.date.issued2017
dc.description.financeNie dotyczy
dc.identifier.doi10.1103/PHYSREVB.96.205436
dc.identifier.issn2469-9950
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/115071
dc.languageeng
dc.pbn.affiliationphysical sciences
dc.relation.ispartofPhysical Review B
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.subject.enCondensed Matter Luminescence Quantum dots Molecular beam epitaxy Time-resolved photoluminescence
dc.titleOrigin of luminescence quenching in structures containing CdSe/ZnSe quantum dots with a few Mn2+ ions
dc.typeJournalArticle
dspace.entity.typePublication