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dc.contributor.authorSharma, Manojen_US
dc.contributor.authorOlutaş, Muraten_US
dc.contributor.authorYeltik, Aydanen_US
dc.contributor.authorKelestemur, Yusufen_US
dc.contributor.authorSharma, Ashmaen_US
dc.contributor.authorDelikanlı, Savaşen_US
dc.contributor.authorGüzeltürk, Buraken_US
dc.contributor.authorGüngör, Kıvançen_US
dc.contributor.authorMcBride, J. R.en_US
dc.contributor.authorDemir, Hilmi Volkanen_US
dc.date.accessioned2019-02-21T16:02:11Z
dc.date.available2019-02-21T16:02:11Z
dc.date.issued2018en_US
dc.identifier.issn0897-4756
dc.identifier.urihttp://hdl.handle.net/11693/49976
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. Copyright
dc.description.sponsorshipWe gratefully acknowledge the financial support from the National Research Foundation of Singapore under its Investigatorship program (NRF-NRFI2016-08). H.V.D. also acknowledges TUBA.
dc.language.isoEnglish
dc.source.titleChemistry of Materialsen_US
dc.relation.isversionofhttps://doi.org/10.1021/acs.chemmater.8b00196
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
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.departmentDepartment of Physicsen_US
dc.citation.spage3265en_US
dc.citation.epage3275en_US
dc.citation.volumeNumber30en_US
dc.citation.issueNumber10en_US
dc.relation.projectNational Research Foundation Singapore, NRF: NRF-NRFI2016-08
dc.identifier.doi10.1021/acs.chemmater.8b00196
dc.publisherAmerican Chemical Society
dc.contributor.bilkentauthorSharma, Manoj
dc.contributor.bilkentauthorOlutaş, Murat
dc.contributor.bilkentauthorYeltik, Aydan
dc.contributor.bilkentauthorKelestemur, Yusuf
dc.contributor.bilkentauthorSharma, Ashma
dc.contributor.bilkentauthorDelikanlı, Savaş
dc.contributor.bilkentauthorGüzeltürk, Burak
dc.contributor.bilkentauthorGüngör, Kıvanç
dc.contributor.bilkentauthorDemir, Hilmi Volkan
dc.identifier.eissn1520-5002
buir.contributor.orcidDemir, Hilmi Volkan|0000-0003-1793-112Xen_US


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