Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/141120
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dc.contributor.authorVeldhuis, Sjoerd Antoniusen_US
dc.contributor.authorTay, Eugene Yong Kangen_US
dc.contributor.authorBruno, Annalisaen_US
dc.contributor.authorDintakurti, Sai S. H.en_US
dc.contributor.authorBhaumik, Saikaten_US
dc.contributor.authorMuduli, Subas Kumaren_US
dc.contributor.authorLi, Mingjieen_US
dc.contributor.authorMathews, Nripanen_US
dc.contributor.authorSum, Tze Chienen_US
dc.contributor.authorMhaisalkar, Subodh Gautamen_US
dc.date.accessioned2020-06-04T04:20:40Z-
dc.date.available2020-06-04T04:20:40Z-
dc.date.issued2017-
dc.identifier.citationVeldhuis, S. A., Tay, E. Y. K., Bruno, A., Dintakurti, S. S. H., Bhaumik, S., Muduli, S. K., . . . Mhaisalkar, S. G. (2017). Benzyl alcohol-treated CH3NH3PbBr3 nanocrystals exhibiting high luminescence, stability, and ultralow amplified spontaneous emission thresholds. Nano Letters, 17(12), 7424-7432. doi:10.1021/acs.nanolett.7b03272en_US
dc.identifier.issn1530-6984en_US
dc.identifier.urihttps://hdl.handle.net/10356/141120-
dc.description.abstractWe report the high yield synthesis of about 11 nm sized CH3NH3PbBr3 nanocrystals with near-unity photoluminescence quantum yield. The nanocrystals are formed in the presence of surface-binding ligands through their direct precipitation in a benzyl alcohol/toluene phase. The benzyl alcohol plays a pivotal role in steering the surface ligands binding motifs on the NC surface, resulting in enhanced surface-trap passivation and near-unity PLQY values. We further demonstrate that thin films from purified CH3NH3PbBr3 nanocrystals are stable >4 months in air, exhibit high optical gain (about 520 cm-1), and display stable, ultralow amplified spontaneous emission thresholds of 13.9 ± 1.3 and 569.7 ± 6 μJ cm-2 at one-photon (400 nm) and two-photon (800 nm) absorption, respectively. To the best of our knowledge, the latter signifies a 5-fold reduction of the lowest reported threshold value for halide perovskite nanocrystals to date, which makes them ideal candidates for light-emitting and low-threshold lasing applications.en_US
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en_US
dc.description.sponsorshipMOE (Min. of Education, S’pore)en_US
dc.language.isoenen_US
dc.relation.ispartofNano Lettersen_US
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in Nano Letters, 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.nanolett.7b03272en_US
dc.subjectScience::Physicsen_US
dc.titleBenzyl alcohol-treated CH3NH3PbBr3 nanocrystals exhibiting high luminescence, stability, and ultralow amplified spontaneous emission thresholdsen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen_US
dc.contributor.researchEnergy Research Institute @NTUen_US
dc.identifier.doi10.1021/acs.nanolett.7b03272-
dc.description.versionAccepted versionen_US
dc.identifier.pmid29125763-
dc.identifier.scopus2-s2.0-85038211880-
dc.identifier.issue12en_US
dc.identifier.volume17en_US
dc.identifier.spage7424en_US
dc.identifier.epage7432en_US
dc.subject.keywordsPerovskitesen_US
dc.subject.keywordsQuantum Dotsen_US
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item.grantfulltextopen-
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