Blue-emitting CdSe nanoplatelets enabled by sulfur-alloyed heterostructures for light-emitting diodes with low turn-on voltage

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buir.contributor.authorShabani, Farzan
buir.contributor.authorBaruj, Hamed Dehghanpour
buir.contributor.authorDelikanlı, Savaş
buir.contributor.authorDemir, Hilmi Volkan
buir.contributor.orcidShabani, Farzan|0000-0003-2174-5960
buir.contributor.orcidBaruj, Hamed Dehghanpour|0000-0003-3822-6622
buir.contributor.orcidDelikanlı, Savaş|0000-0002-0613-8014
buir.contributor.orcidDemir, Hilmi Volkan|0000-0003-1793-112X
dc.citation.epage1376en_US
dc.citation.issueNumber1en_US
dc.citation.spage1367en_US
dc.citation.volumeNumber5en_US
dc.contributor.authorİzmir, M.
dc.contributor.authorSharma, A.
dc.contributor.authorShendre, S.
dc.contributor.authorDurmuşoğlu, E. G.
dc.contributor.authorSharma, V. K.
dc.contributor.authorShabani, Farzan
dc.contributor.authorBaruj, Hamed Dehghanpour
dc.contributor.authorDelikanlı, Savaş
dc.contributor.authorSharma, M.
dc.contributor.authorDemir, Hilmi Volkan
dc.date.accessioned2022-02-11T12:51:59Z
dc.date.available2022-02-11T12:51:59Z
dc.date.issued2021-12-28
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentDepartment of Physicsen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractColloidal nanoplatelets (NPLs) have emerged as the last class of semiconductor nanocrystals for their potential optoelectronic applications. The heterostructures of these nanocrystals can achieve high photoluminescence quantum yield and enhanced photostability, along with color purity. Such advantages make them a promising candidate for solution-processable light-emitting diodes (LEDs). However, to date, blue-emitting CdSe nanoplatelets (NPLs) exhibit poor photoluminescence quantum yield and also typically suffer from a rolled-up morphology. To mitigate these problems in this work, we propose and demonstrate efficient alloyed 4 ML CdSe1–xSx nanoplatelets having a CdS crown with enhanced photoluminescence quantum yields (up to 60%) in the blue region (462–487 nm). We successfully used these NPLs as an electrically driven active emitter in the blue-emitting NPL-LEDs with a low turn-on voltage of ∼4 V. The Commission Internationale de L’Eclairage (CIE) coordinates of (0.23, 0.14) were obtained for these blue-emitting NPL-LEDs. These emitters could potentially open up the opportunity for full-color displays using these NPL-based blue LEDs in conjunction with the red and green ones.en_US
dc.identifier.doi10.1021/acsanm.1c03939en_US
dc.identifier.eissn2574-0970
dc.identifier.urihttp://hdl.handle.net/11693/77292
dc.language.isoEnglishen_US
dc.publisherAmerican Chemical Societyen_US
dc.relation.isversionofhttps://doi.org/10.1021/acsanm.1c03939en_US
dc.source.titleACS Applied Nano Materialsen_US
dc.subjectColloidal nanoplateletsen_US
dc.subjectAlloyingen_US
dc.subjectHeterostructuresen_US
dc.subjectElectroluminescenceen_US
dc.subjectLight-emitting diodesen_US
dc.subjectBlue emissionen_US
dc.titleBlue-emitting CdSe nanoplatelets enabled by sulfur-alloyed heterostructures for light-emitting diodes with low turn-on voltageen_US
dc.typeArticleen_US

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