Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/146982
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dc.contributor.authorAltintas, Yemlihaen_US
dc.contributor.authorLiu, Baiquanen_US
dc.contributor.authorHernández-Martínez, Pedro Ludwigen_US
dc.contributor.authorGheshlaghi, Negaren_US
dc.contributor.authorShabani, Farzanen_US
dc.contributor.authorSharma, Manojen_US
dc.contributor.authorWang, Linen_US
dc.contributor.authorSun, Handongen_US
dc.contributor.authorMutlugun, Evrenen_US
dc.contributor.authorDemir, Hilmi Volkanen_US
dc.date.accessioned2021-03-22T08:42:35Z-
dc.date.available2021-03-22T08:42:35Z-
dc.date.issued2020-
dc.identifier.citationAltintas, Y., Liu, B., Hernández-Martínez, P. L., Gheshlaghi, N., Shabani, F., Sharma, M., Wang, L., Sun, H., Mutlugun, E. & Demir, H. V. (2020). Spectrally wide-range-tunable, efficient, and bright colloidal light-emitting diodes of quasi-2D nanoplatelets enabled by engineered alloyed heterostructures. Chemistry of Materials, 32(18), 7874-7883. https://dx.doi.org/10.1021/acs.chemmater.0c02630en_US
dc.identifier.issn1520-5002en_US
dc.identifier.other0000-0001-5761-9654-
dc.identifier.other0000-0001-5215-9740-
dc.identifier.other0000-0002-2261-7103-
dc.identifier.other0000-0003-3715-5594-
dc.identifier.other0000-0003-1793-112X-
dc.identifier.urihttps://hdl.handle.net/10356/146982-
dc.description.abstractRecently, there has been tremendous interest in the synthesis and optoelectronic applications of quasi-two-dimensional colloidal nanoplatelets (NPLs). Thanks to the ultranarrow emission linewidth, high-extinction coefficient, and high photostability, NPLs offer an exciting opportunity for high-performance optoelectronics. However, until now, the applications of these NPLs are limited to available discrete emission ranges, limiting the full potential of these exotic materials as efficient light emitters. Here, we introduce a detailed systematic study on the synthesis of NPLs based on the alloying mechanisms in core/shell, core/alloyed shell, alloyed core/shell, and alloyed core/alloyed shell heterostructures. Through the engineering of the band gap supported by the theoretical calculations, we carefully designed and successfully synthesized the NPL emitters with continuously tunable emission. Unlike conventional NPLs showing discrete emission, here, we present highly efficient core/shell NPLs with fine spectral tunability from green to deep-red spectra. As an important demonstration of these efficient emitters, the first-time implementation of yellow NPL light-emitting diodes (LEDs) has been reported with record device performance, including the current efficiency surpassing 18.2 cd A-1, power efficiency reaching 14.8 lm W-1, and record luminance exceeding 46 900 cd m-2. This fine and wide-range color tunability in the visible range from stable and efficient core/shell NPLs is expected to be extremely important for the optoelectronic applications of the family of colloidal NPL emitters.en_US
dc.description.sponsorshipAgency for Science, Technology and Research (A*STAR)en_US
dc.description.sponsorshipNational Research Foundation (NRF)en_US
dc.language.isoenen_US
dc.relation.ispartofChemistry of Materialsen_US
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in Chemistry of Materials, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.chemmater.0c02630en_US
dc.subjectEngineering::Materialsen_US
dc.titleSpectrally wide-range-tunable, efficient, and bright colloidal light-emitting diodes of quasi-2D nanoplatelets enabled by engineered alloyed heterostructuresen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen_US
dc.contributor.researchLUMINOUS! Centre of Excellence for Semiconductor Lighting & Displaysen_US
dc.identifier.doi10.1021/acs.chemmater.0c02630-
dc.description.versionAccepted versionen_US
dc.identifier.scopus2-s2.0-85093088485-
dc.identifier.issue18en_US
dc.identifier.volume32en_US
dc.identifier.spage7874en_US
dc.identifier.epage7883en_US
dc.subject.keywordsColoren_US
dc.subject.keywordsAlloyingen_US
dc.description.acknowledgementThe authors acknowledge the financial support from the Singapore National Research Foundation under the programs (NRF-NRFI2016-08) and Agency for Science, Technology and Research (A*STAR) of Singapore and also partially from TUBITAK 115E679, 115F297 and 117E713. H.V.D. and E.M. acknowledge the support from TUBA and TUBA-GEBIP, respectively.en_US
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