Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/88941
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dc.contributor.authorXing, Junen
dc.contributor.authorZhao, Yongbiaoen
dc.contributor.authorAskerka, Mikhailen
dc.contributor.authorQuan, Li Naen
dc.contributor.authorGong, Xiwenen
dc.contributor.authorZhao, Weijieen
dc.contributor.authorZhao, Jiaxinen
dc.contributor.authorTan, Hairenen
dc.contributor.authorLong, Guankuien
dc.contributor.authorGao, Liangen
dc.contributor.authorYang, Zhenyuen
dc.contributor.authorVoznyy, Oleksandren
dc.contributor.authorTang, Jiangen
dc.contributor.authorLu, Zheng-Hongen
dc.contributor.authorXiong, Qihuaen
dc.contributor.authorSargent, Edward H.en
dc.date.accessioned2018-09-20T04:07:02Zen
dc.date.accessioned2019-12-06T17:14:14Z-
dc.date.available2018-09-20T04:07:02Zen
dc.date.available2019-12-06T17:14:14Z-
dc.date.issued2018en
dc.identifier.citationXing, J., Zhao, Y., Askerka, M., Quan, L. N., Gong, X., Zhao, W., . . . Sargent, E. H. (2018). Color-stable highly luminescent sky-blue perovskite light-emitting diodes. Nature Communications, 9(1), 3541-. doi:10.1038/s41467-018-05909-8en
dc.identifier.urihttps://hdl.handle.net/10356/88941-
dc.description.abstractPerovskite light-emitting diodes (PeLEDs) have shown excellent performance in the green and near-infrared spectral regions, with high color purity, efficiency, and brightness. In order to shift the emission wavelength to the blue, compositional engineering (anion mixing) and quantum-confinement engineering (reduced-dimensionality) have been employed. Unfortunately, LED emission profiles shift with increasing driving voltages due to either phase separation or the coexistence of multiple crystal domains. Here we report color-stable sky-blue PeLEDs achieved by enhancing the phase monodispersity of quasi-2D perovskite thin films. We selected cation combinations that modulate the crystallization and layer thickness distribution of the domains. The perovskite films show a record photoluminescence quantum yield of 88% at 477 nm. The corresponding PeLEDs exhibit stable sky-blue emission under high operation voltages. A maximum luminance of 2480 cd m−2 at 490 nm is achieved, fully one order of magnitude higher than the previous record for quasi-2D blue PeLEDs.en
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en
dc.description.sponsorshipMOE (Min. of Education, S’pore)en
dc.format.extent8 p.en
dc.language.isoenen
dc.relation.ispartofseriesNature Communicationsen
dc.rights© 2018 The Author(s). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.en
dc.subjectPerovskite Light-emitting Diodesen
dc.subjectDRNTU::Engineering::Electrical and electronic engineeringen
dc.subjectColor-stableen
dc.titleColor-stable highly luminescent sky-blue perovskite light-emitting diodesen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen
dc.contributor.organizationMajuLab, CNRS-UNS-NUS-NTU International Joint Research Uniten
dc.contributor.researchNanoelectronics Centre of Excellence (NOVITAS)en
dc.identifier.doi10.1038/s41467-018-05909-8en
dc.description.versionPublished versionen
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