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dc.contributor.authorWang, Liangling
dc.contributor.authorLiu, Hong
dc.contributor.authorZhang, Yuhai
dc.contributor.authorMohammed, Omar F.
dc.date.accessioned2020-01-02T13:16:53Z
dc.date.available2020-01-02T13:16:53Z
dc.date.issued2019-11-22
dc.identifier.citationWang, L., Liu, H., Zhang, Y., & Mohammed, O. F. (2019). Photoluminescence Origin of Zero-Dimensional Cs4PbBr6 Perovskite. ACS Energy Letters, 87–99. doi:10.1021/acsenergylett.9b02275
dc.identifier.doi10.1021/acsenergylett.9b02275
dc.identifier.urihttp://hdl.handle.net/10754/660932
dc.description.abstractGreen-emitting zero-dimensional perovskite Cs4PbBr6, consisting of an array of isolated [PbBr6]4- octahedra, has drawn a magnitude of interest due to its peculiar yet robust photoluminescence properties. Given many advances in the past few years, the true nature of the unusual green emission from a wide-bandgap Cs4PbBr6 remains elusive. Although a number of reviews have been published on this subject, the emerging evidence motivates us to summarize the rapid progress about the debate, whereby critical comments were made to either rationalize or question each point of view. This Review summarizes the latest findings on the PL origins covering both CsPbBr3 impurity and defect theories. Specifically, the chemical nature of the defects, including Br vacancies, polybromide, self-trapped excitons, and interstitial molecules, is discussed. The phase transformation between CsPbBr3 and Cs4PbBr6 is particularly stressed because it has brought more cloud on the PL puzzle. Finally, we discuss the potential application of this material and envisioned several future directions that may clarify the mechanism of PL.
dc.description.sponsorshipThis work is supported by the National Natural Science Foundation of China (No. 21805111 and 11405073) and the Taishan Scholar Fund (No. tsqn201812082). L.W. has been supported by the German DAAD-Wong Kuan Cheng Fellowship (57453998).
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttps://pubs.acs.org/doi/10.1021/acsenergylett.9b02275
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Energy Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acsenergylett.9b02275.
dc.titlePhotoluminescence Origin of Zero-Dimensional Cs4PbBr6 Perovskite
dc.typeArticle
dc.contributor.departmentChemical Science Program
dc.contributor.departmentKAUST Solar Center (KSC)
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentUltrafast Laser Spectroscopy and Four-dimensional Electron Imaging Research Group
dc.identifier.journalACS Energy Letters
dc.rights.embargodate2020-11-22
dc.eprint.versionPost-print
dc.contributor.institutionCollaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong Institute for Advanced Interdisciplinary Research (iAIR), University of Jinan, Jinan 250022, People's Republic of China
dc.contributor.institutionSchool of Physics and Technology, University of Jinan, Jinan 250022, People's Republic of China
kaust.personMohammed, Omar F.
dc.date.published-online2019-11-22
dc.date.published-print2020-01-10


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