Understanding the journey of dopant copper ions in atomically flat colloidal nanocrystals of CdSe nanoplatelets using partial cation exchange reactions

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dc.authorid0000-0003-1616-2728en_US
dc.authorid0000-0001-5215-9740en_US
dc.authorid0000-0002-6250-6977
dc.authorid0000-0001-6976-4680
dc.contributor.authorSharma, Manoj
dc.contributor.authorOlutaş, Murat
dc.contributor.authorYeltik, Aydan
dc.contributor.authorKeleştemur, Yusuf
dc.contributor.authorSharma, Ashma
dc.date.accessioned2021-06-23T19:49:42Z
dc.date.available2021-06-23T19:49:42Z
dc.date.issued2018
dc.departmentBAİBÜ, Fen Edebiyat Fakültesi, Fizik Bölümüen_US
dc.description.abstractUnique electronic and optical properties of doped semiconductor nanocrystals (NCs) have widely stimulated a great deal of interest to explore new effective synthesis routes to achieve controlled doping for highly efficient materials. In this work, we show copper doping via postsynthesis partial cation exchange (CE) in atomically flat colloidal semiconductor nanoplatelets (NPLs). Here chemical reactivity of different dopant precursors, reaction kinetics, and shape of seed NPLs were extensively elaborated for successful doping and efficient emission. Dopant-induced Stokes shifted and tunable photoluminescence emission (640 to 830 nm) was observed in these Cu-doped CdSe NPLs using different thicknesses and heterostructures. High quantum yields (reaching 63%) accompanied by high absorption cross sections (>2.5 times) were obtained in such NPLs compared to those of Cu-doped CdSe colloidal quantum dots (CQDs). Systematic tuning of the doping level in these two-dimensional NPLs provides an insightful understanding of the chemical dopant based orbital hybridization in NCs. The unique combination of doping via the partial CE method and precise control of quantum confinement in such atomically flat NPLs originating from their magic-sized vertical thickness exhibits an excellent model platform for studying photophysics of doped quantum confined systems.en_US
dc.identifier.doi10.1021/acs.chemmater.8b00196
dc.identifier.endpage3275en_US
dc.identifier.issn0897-4756
dc.identifier.issn1520-5002
dc.identifier.issue10en_US
dc.identifier.scopus2-s2.0-85046652663en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage3265en_US
dc.identifier.urihttps://doi.org/10.1021/acs.chemmater.8b00196
dc.identifier.urihttps://hdl.handle.net/20.500.12491/9593
dc.identifier.volume30en_US
dc.identifier.wosWOS:000433403800012en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorOlutaş, Murat
dc.language.isoenen_US
dc.publisherAmer Chemical Socen_US
dc.relation.ispartofChemistry Of Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectCdSe Nanoplateleten_US
dc.subjectColloidal Nanocrystals
dc.subjectDopant Copper Ions
dc.subjectCation
dc.titleUnderstanding the journey of dopant copper ions in atomically flat colloidal nanocrystals of CdSe nanoplatelets using partial cation exchange reactionsen_US
dc.typeArticleen_US

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