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dc.contributor.authorMa, Zhiweien
dc.contributor.authorLiu, Zhunen
dc.contributor.authorLu, Siyuen
dc.contributor.authorWang, Lingruien
dc.contributor.authorFeng, Xiaoleien
dc.contributor.authorYang, Dongwenen
dc.contributor.authorWang, Kaien
dc.contributor.authorXiao, Guanjunen
dc.contributor.authorZhang, Lijunen
dc.contributor.authorRedfern, Simonen
dc.contributor.authorZou, Boen
dc.date.accessioned2018-12-08T00:32:10Z
dc.date.available2018-12-08T00:32:10Z
dc.date.issued2018-10-29en
dc.identifier.issn2041-1723
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/286575
dc.description.abstractMetal halide perovskites (MHPs) are of great interest for optoelectronics because of their high quantum efficiency in solar cells and light-emitting devices. However, exploring an effective strategy to further improve their optical activities remains a considerable challenge. Here, we report that nanocrystals (NCs) of the initially nonfluorescent zero-dimensional (0D) cesium lead halide perovskite Cs4PbBr6 exhibit a distinct emission under a high pressure of 3.01 GPa. Subsequently, the emission intensity of Cs4PbBr6 NCs experiences a significant increase upon further compression. Joint experimental and theoretical analyses indicate that such pressure-induced emission (PIE) may be ascribed to the enhanced optical activity and the increased binding energy of self-trapped excitons upon compression. This phenomenon is a result of the large distortion of [PbBr6]4− octahedral motifs resulting from a structural phase transition. Our findings demonstrate that high pressure can be a robust tool to boost the photoluminescence efficiency and provide insights into the relationship between the structure and optical properties of 0D MHPs under extreme conditions.
dc.format.mediumElectronicen
dc.languageengen
dc.publisherSpringer Nature
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titlePressure-induced emission of cesium lead halide perovskite nanocrystals.en
dc.typeArticle
prism.issueIdentifier1en
prism.publicationDate2018en
prism.publicationNameNature communicationsen
prism.startingPage4506
prism.volume9en
dc.identifier.doi10.17863/CAM.33885
dcterms.dateAccepted2018-09-21en
rioxxterms.versionofrecord10.1038/s41467-018-06840-8en
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2018-10-29en
dc.contributor.orcidLiu, Zhun [0000-0003-1455-8235]
dc.contributor.orcidFeng, Xiaolei [0000-0003-4410-4576]
dc.contributor.orcidZhang, Lijun [0000-0002-6438-5486]
dc.contributor.orcidRedfern, Simon [0000-0001-9513-0147]
dc.contributor.orcidZou, Bo [0000-0002-3215-1255]
dc.identifier.eissn2041-1723
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idNERC (via University of St Andrews) (NE/P012167/1)
pubs.funder-project-idNERC (NE/P019714/1)


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International