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dc.contributor.authorStasio, Francesco Di
dc.contributor.authorChristodoulou, Sotiros
dc.contributor.authorHuo, Nengjie
dc.contributor.authorKonstantatos, Gerasimos
dc.contributor.otherUniversitat Politècnica de Catalunya. Institut de Ciències Fotòniques
dc.date.accessioned2018-09-28T08:29:42Z
dc.date.available2018-09-28T08:29:42Z
dc.date.issued2017-09-12
dc.identifier.citationStasio, F. D. [et al.]. Near-Unity Photoluminescence Quantum Yield in CsPbBr3 Nanocrystal Solid-State Films via Postsynthesis Treatment with Lead Bromide. "Chemistry of Materials", 12 Setembre 2017, vol. 29, núm. 18, p. 7663-7667.
dc.identifier.issn0897-4756
dc.identifier.urihttp://hdl.handle.net/2117/121598
dc.description.abstractMetal halide perovskite nanocrystals (NCs) possess high photoluminescence (PL) quantum yield (PL) and color tunability. Yet, until now, it has been difficult to maintain the high PL observed in solution in spin-coated films. Here, we report a novel CsPbBr3 NCs room-temperature synthesis based on Cs acetate, which displays near-unity PL in solid-state films upon post-synthetic treatment with lead bromide. The as-synthesized NCs show a PL of 80% in spincoated films but the post-synthesis treatment further enhances the efficiency >95%. The high PL is further confirmed by the monomolecular decay of the PL (5.8 ns) indicating a nearly complete suppression of non-radiative channels. The obtained films demonstrate high stability in air and require around 3 weeks to decrease to half the initial PL value.
dc.format.extent5 p.
dc.language.isoeng
dc.publisherACS
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Física
dc.subject.lcshPhotoluminescence
dc.subject.otherPhotoluminescence
dc.titleNear-Unity Photoluminescence Quantum Yield in CsPbBr3 Nanocrystal Solid-State Films via Postsynthesis Treatment with Lead Bromide
dc.typeArticle
dc.subject.lemacFotoluminescència -- PFC
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://pubs.acs.org/doi/abs/10.1021/acs.chemmater.7b02834
dc.rights.accessOpen Access
dc.description.versionPostprint (author's final draft)
dc.relation.projectidH2020-MSCA-IF- 2016-750600
dc.relation.projectidH2020- MSCA-IF-2015-703018
dc.relation.projectidMAT2014-56210-R.
upcommons.citation.publishedtrue
upcommons.citation.publicationNameChemistry of Materials
upcommons.citation.volume29
upcommons.citation.number18
upcommons.citation.startingPage7663
upcommons.citation.endingPage7667


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Except where otherwise noted, content on this work is licensed under a Creative Commons license: Attribution-NonCommercial-NoDerivs 3.0 Spain