Near-unity efficiency energy transfer from colloidal semiconductor quantum wells of CdSe/CdS nanoplatelets to a monolayer of MoS2

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dc.authorid0000-0001-6158-0430
dc.authorid0000-0002-6250-6977
dc.contributor.authorTaghipour, Nima
dc.contributor.authorMartinez, Pedro Ludwig Hernandez
dc.contributor.authorÖzden, Ayberk
dc.contributor.authorOlutaş, Murat
dc.contributor.authorDede, Didem
dc.date.accessioned2021-06-23T19:49:34Z
dc.date.available2021-06-23T19:49:34Z
dc.date.issued2018
dc.departmentBAİBÜ, Fen Edebiyat Fakültesi, Fizik Bölümüen_US
dc.description.abstractA hybrid structure of the quasi-2D colloidal semiconductor quantum wells assembled with a single layer of 2D transition metal dichalcogenides offers the possibility of highly strong dipole-to-dipole coupling, which may enable extraordinary levels of efficiency in Forster resonance energy transfer (FRET). Here, we show ultra-high-efficiency FRET from the ensemble thin films of CdSe/CdS nanoplatelets (NPLs) to a MoS2 monolayer. From time-resolved fluorescence spectroscopy, we observed the suppression of the photoluminescence of the NPLs corresponding to the total rate of energy transfer from similar to 0.4 to 268 ns(-1). Using an Al2O3 separating layer between CdSe/CdS and MoS2 with thickness tuned from 5 to 1 nm, we found that FRET takes place 7- to 88-fold faster than the Auger recombination in CdSe-based NPLs. Our measurements reveal that the FRET rate scales down with d(-2) for the donor of CdSe/CdS NPLs and the acceptor of the MoS2 monolayer, d being the center-to-center distance between this FRET pair. A full electromagnetic model explains the behavior of this d(-2) system. This scaling arises from the delocalization of the dipole fields in the ensemble thin film of the NPLs and full distribution of the electric field across the layer of MoS2. This d(-2) dependency results in an extraordinarily long Forster radius of similar to 33 nm.en_US
dc.identifier.doi10.1021/acsnano.8b04119
dc.identifier.endpage8554en_US
dc.identifier.issn1936-0851
dc.identifier.issn1936-086X
dc.identifier.issue8en_US
dc.identifier.pmid29965729en_US
dc.identifier.scopus2-s2.0-85049648928en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage8547en_US
dc.identifier.urihttps://doi.org/10.1021/acsnano.8b04119
dc.identifier.urihttps://hdl.handle.net/20.500.12491/9547
dc.identifier.volume12en_US
dc.identifier.wosWOS:000443525600107en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.institutionauthorOlutaş, Murat
dc.language.isoenen_US
dc.publisherAmer Chemical Socen_US
dc.relation.ispartofAcs Nanoen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectSemiconductor Nanocrystalsen_US
dc.subjectColloidal Nanoplateletsen_US
dc.subjectMolybdenum Disulfideen_US
dc.subjectFRETen_US
dc.subjectDistance Dependencyen_US
dc.subjectForster Radiusen_US
dc.subjectAuger Recombinationen_US
dc.titleNear-unity efficiency energy transfer from colloidal semiconductor quantum wells of CdSe/CdS nanoplatelets to a monolayer of MoS2en_US
dc.typeArticleen_US

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