Pressure-induced emission of cesium lead halide perovskite nanocrystals.
dc.contributor.author | Ma, Zhiwei | |
dc.contributor.author | Liu, Zhun | |
dc.contributor.author | Lu, Siyu | |
dc.contributor.author | Wang, Lingrui | |
dc.contributor.author | Feng, Xiaolei | |
dc.contributor.author | Yang, Dongwen | |
dc.contributor.author | Wang, Kai | |
dc.contributor.author | Xiao, Guanjun | |
dc.contributor.author | Zhang, Lijun | |
dc.contributor.author | Redfern, Simon AT | |
dc.contributor.author | Zou, Bo | |
dc.date.accessioned | 2018-12-08T00:32:10Z | |
dc.date.available | 2018-12-08T00:32:10Z | |
dc.date.issued | 2018-10-29 | |
dc.identifier.issn | 2041-1723 | |
dc.identifier.uri | https://www.repository.cam.ac.uk/handle/1810/286575 | |
dc.description.abstract | Metal 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.medium | Electronic | |
dc.language | eng | |
dc.publisher | Springer Science and Business Media LLC | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.title | Pressure-induced emission of cesium lead halide perovskite nanocrystals. | |
dc.type | Article | |
prism.issueIdentifier | 1 | |
prism.publicationDate | 2018 | |
prism.publicationName | Nat Commun | |
prism.startingPage | 4506 | |
prism.volume | 9 | |
dc.identifier.doi | 10.17863/CAM.33885 | |
dcterms.dateAccepted | 2018-09-21 | |
rioxxterms.versionofrecord | 10.1038/s41467-018-06840-8 | |
rioxxterms.version | VoR | |
rioxxterms.licenseref.uri | http://www.rioxx.net/licenses/all-rights-reserved | |
rioxxterms.licenseref.startdate | 2018-10-29 | |
dc.contributor.orcid | Feng, Xiaolei [0000-0003-4410-4576] | |
dc.contributor.orcid | Zhang, Lijun [0000-0002-6438-5486] | |
dc.contributor.orcid | Redfern, Simon AT [0000-0001-9513-0147] | |
dc.contributor.orcid | Zou, Bo [0000-0002-3215-1255] | |
dc.identifier.eissn | 2041-1723 | |
rioxxterms.type | Journal Article/Review | |
pubs.funder-project-id | Natural Environment Research Council (NE/P012167/1) | |
pubs.funder-project-id | Natural Environment Research Council (NE/P019714/1) | |
cam.issuedOnline | 2018-10-29 |
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