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dc.contributor.authorMa, Zhiwei
dc.contributor.authorLiu, Zhun
dc.contributor.authorLu, Siyu
dc.contributor.authorWang, Lingrui
dc.contributor.authorFeng, Xiaolei
dc.contributor.authorYang, Dongwen
dc.contributor.authorWang, Kai
dc.contributor.authorXiao, Guanjun
dc.contributor.authorZhang, Lijun
dc.contributor.authorRedfern, Simon
dc.contributor.authorZou, Bo
dc.date.accessioned2018-12-08T00:32:10Z
dc.date.available2018-12-08T00:32:10Z
dc.date.issued2018-10-29
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.mediumElectronic
dc.languageeng
dc.publisherSpringer Science and Business Media LLC
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titlePressure-induced emission of cesium lead halide perovskite nanocrystals.
dc.typeArticle
prism.issueIdentifier1
prism.publicationDate2018
prism.publicationNameNat Commun
prism.startingPage4506
prism.volume9
dc.identifier.doi10.17863/CAM.33885
dcterms.dateAccepted2018-09-21
rioxxterms.versionofrecord10.1038/s41467-018-06840-8
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2018-10-29
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/Review
pubs.funder-project-idNatural Environment Research Council (NE/P012167/1)
pubs.funder-project-idNatural Environment Research Council (NE/P019714/1)
cam.issuedOnline2018-10-29


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