On the rational design of core/(multi)-Crown Type-II Heteronanoplatelets

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buir.contributor.authorHilmi Volkan, Demir
buir.contributor.authorDelikanlı, Savaş
buir.contributor.authorCanımkurbey, Betül
buir.contributor.authorShabani, Farzan
buir.contributor.authorIşık, Ahmet Tarık
buir.contributor.authorÖzkan, İlayda
buir.contributor.authorBozkaya, İklim
buir.contributor.authorBozkaya, Taylan
buir.contributor.authorIşık, Furkan
buir.contributor.authorHakan, Akgün
buir.contributor.orcidDemir, Hilmi Volkan|0000-0003-1793-112X
buir.contributor.orcidDelikanlı, Savaş|0000-0002-0613-8014
buir.contributor.orcidShabani, Farzan|0000-0003-2174-5960
buir.contributor.orcidIşık, Ahmet Tarık|0000-0001-5881-5438
buir.contributor.orcidAkgün, Hakan|0009-0009-3474-1599
dc.citation.epage12043en_US
dc.citation.issueNumber22
dc.citation.spage12033
dc.citation.volumeNumber145
dc.contributor.authorDemir, Hilmi Volkan
dc.contributor.authorDelikanlı, Savaş
dc.contributor.authorCanımkurbey, Betül
dc.contributor.authorHernández-Martínez, P. L.
dc.contributor.authorShabani, Farzan
dc.contributor.authorIşık, Ahmet Tarık
dc.contributor.authorÖzkan, İlayda
dc.contributor.authorBozkaya, İklim
dc.contributor.authorBozkaya, Taylan
dc.contributor.authorIşık, Furkan
dc.contributor.authorDurmuşoglu, E. G.
dc.contributor.authorİzmir, M.
dc.contributor.authorHakan, Akgün
dc.date.accessioned2024-03-12T16:59:31Z
dc.date.available2024-03-12T16:59:31Z
dc.date.issued2023-05-09
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)
dc.departmentDepartment of Electrical and Electronics Engineering
dc.departmentDepartment of Physics
dc.description.abstractSolution-processed two-dimensional nanoplatelets (NPLs) allowing lateral growth of a shell (crown) by not affecting the pure confinement in the vertical direction provide unprecedented opportunities for designing heterostructures for light-emitting and -harvesting applications. Here, we present a pathway for designing and synthesizing colloidal type-II core/(multi-)crown hetero-NPLs and investigate their optical properties. Stoke's shifted broad photoluminescence (PL) emission and long PL lifetime (∼few 100 ns) together with our wavefunction calculations confirm the type-II electronic structure in the synthesized CdS/CdSe1-xTexcore/crown hetero-NPLs. In addition, we experimentally obtained the band-offsets between CdS, CdTe, and CdSe in these NPLs. These results helped us designing hetero-NPLs with near-unity PL quantum yield in the CdSe/CdSe1-xTex/CdSe/CdS core/multicrown architecture. These core/multicrown hetero-NPLs have two type-II interfaces unlike traditional type-II NPLs having only one and possess a CdS ending layer for passivation and efficient suppression of stacking required for optoelectronic applications. The light-emitting diode (LED) obtained using multicrown hetero-NPLs exhibits a maximum luminance of 36,612 cd/m2and external quantum efficiency of 9.3%, which outcompetes the previous best results from type-II NPL-based LEDs. These findings may enable designs of future advanced heterostructures of NPLs which are anticipated to show desirable results, especially for LED and lasing platforms. © 2023 American Chemical Society. All rights reserved.
dc.description.provenanceMade available in DSpace on 2024-03-12T16:59:31Z (GMT). No. of bitstreams: 1 On_the_rational_design_ of_ coremulticrown_typeII_heteronanoplatelets_.pdf: 5207864 bytes, checksum: 036529910ebc992b1ab81d57d33a81ff (MD5) Previous issue date: 2023-06-07en
dc.identifier.doi10.1021/jacs.3c00999
dc.identifier.eissn1520-5126
dc.identifier.issn0002-7863
dc.identifier.urihttps://hdl.handle.net/11693/114630
dc.language.isoen_US
dc.publisherAmerican Chemical Society
dc.relation.isversionofhttps://dx.doi.org/10.1021/jacs.3c00999
dc.rightsCC BY 4.0 DEED (Attribution 4.0 International)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.source.titleJournal of the American Chemical Society
dc.titleOn the rational design of core/(multi)-Crown Type-II Heteronanoplatelets
dc.typeArticle

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Institute of Materials Science and Nanotechnology (UNAM)
Department of Electrical and Electronics Engineering
Department of Physics