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Photoluminescence of CdTe quantum wells doped with cobalt and iron

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cris.lastimport.scopus2024-02-12T20:06:54Z
dc.abstract.enCobalt and iron dopants in semiconductors are killers of excitonic photoluminescence. In particular, photoluminescence of quantum wells doped with Co and Fe poses a challenge and has not been reported so far. Here, we show molecular beam epitaxy growth and photoluminescence studies of (Cd,Co)Te and (Cd,Fe)Te quantum wells in (Cd,Mg)Te. We compare the results to well-known structures: CdTe and (Cd,Mn)Te quantum wells, and we conclude that 0.2% of Fe reduces photoluminescence intensity by 3 orders of magnitude, and similar concentration of Co reduces PL intensity by about 5 orders of magnitude. We also present the influence of the dopant’s concentration on emission efficiency in external magnetic field. Structures with low doping levels require weaker fields to reduce the quenching effect.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorPiotrowski, Piotr
dc.contributor.authorPacuski, Wojciech
dc.date.accessioned2024-01-25T16:36:36Z
dc.date.available2024-01-25T16:36:36Z
dc.date.issued2020
dc.description.financePublikacja bezkosztowa
dc.description.volume221
dc.identifier.doi10.1016/J.JLUMIN.2020.117047
dc.identifier.issn0022-2313
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/115839
dc.languageeng
dc.pbn.affiliationphysical sciences
dc.relation.ispartofJournal of Luminescence
dc.relation.pages117047
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.subject.enMolecular beam epitaxy
dc.subject.enQuantum wells
dc.subject.enCadmium telluride
dc.subject.enMagnetic ions
dc.subject.enPhotoluminescence quenching
dc.subject.enBuffer doping
dc.titlePhotoluminescence of CdTe quantum wells doped with cobalt and iron
dc.typeJournalArticle
dspace.entity.typePublication