Pure Cs4PbBr6: Highly Luminescent Zero-Dimensional Perovskite Solids

Handle URI:
http://hdl.handle.net/10754/623102
Title:
Pure Cs4PbBr6: Highly Luminescent Zero-Dimensional Perovskite Solids
Authors:
Saidaminov, Makhsud I. ( 0000-0002-3850-666X ) ; Almutlaq, Jawaher ( 0000-0003-4558-6773 ) ; Sarmah, Smritakshi P.; Dursun, Ibrahim ( 0000-0002-4408-3392 ) ; Zhumekenov, Ayan A.; Begum, Raihana; Pan, Jun; Cho, Nam Chul; Mohammed, Omar F. ( 0000-0001-8500-1130 ) ; Bakr, Osman M. ( 0000-0002-3428-1002 )
Abstract:
So-called zero-dimensional perovskites, such as Cs4PbBr6, promise outstanding emissive properties. However, Cs4PbBr6 is mostly prepared by melting of precursors that usually leads to a coformation of undesired phases. Here, we report a simple low-temperature solution-processed synthesis of pure Cs4PbBr6 with remarkable emission properties. We found that pure Cs4PbBr6 in solid form exhibits a 45% photoluminescence quantum yield (PLQY), in contrast to its three-dimensional counterpart, CsPbBr3, which exhibits more than 2 orders of magnitude lower PLQY. Such a PLQY of Cs4PbBr6 is significantly higher than that of other solid forms of lower-dimensional metal halide perovskite derivatives and perovskite nanocrystals. We attribute this dramatic increase in PL to the high exciton binding energy, which we estimate to be ∼353 meV, likely induced by the unique Bergerhoff–Schmitz–Dumont-type crystal structure of Cs4PbBr6, in which metal-halide-comprised octahedra are spatially confined. Our findings bring this class of perovskite derivatives to the forefront of color-converting and light-emitting applications.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Saidaminov MI, Almutlaq J, Sarmah S, Dursun I, Zhumekenov AA, et al. (2016) Pure Cs4PbBr6: Highly Luminescent Zero-Dimensional Perovskite Solids. ACS Energy Letters 1: 840–845. Available: http://dx.doi.org/10.1021/acsenergylett.6b00396.
Publisher:
American Chemical Society (ACS)
Journal:
ACS Energy Letters
Issue Date:
26-Sep-2016
DOI:
10.1021/acsenergylett.6b00396
Type:
Article
ISSN:
2380-8195; 2380-8195
Sponsors:
The authors acknowledge the support of King Abdullah University of Science and Technology (KAUST).
Additional Links:
http://pubs.acs.org/doi/full/10.1021/acsenergylett.6b00396
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorSaidaminov, Makhsud I.en
dc.contributor.authorAlmutlaq, Jawaheren
dc.contributor.authorSarmah, Smritakshi P.en
dc.contributor.authorDursun, Ibrahimen
dc.contributor.authorZhumekenov, Ayan A.en
dc.contributor.authorBegum, Raihanaen
dc.contributor.authorPan, Junen
dc.contributor.authorCho, Nam Chulen
dc.contributor.authorMohammed, Omar F.en
dc.contributor.authorBakr, Osman M.en
dc.date.accessioned2017-04-10T07:49:51Z-
dc.date.available2017-04-10T07:49:51Z-
dc.date.issued2016-09-26en
dc.identifier.citationSaidaminov MI, Almutlaq J, Sarmah S, Dursun I, Zhumekenov AA, et al. (2016) Pure Cs4PbBr6: Highly Luminescent Zero-Dimensional Perovskite Solids. ACS Energy Letters 1: 840–845. Available: http://dx.doi.org/10.1021/acsenergylett.6b00396.en
dc.identifier.issn2380-8195en
dc.identifier.issn2380-8195en
dc.identifier.doi10.1021/acsenergylett.6b00396en
dc.identifier.urihttp://hdl.handle.net/10754/623102-
dc.description.abstractSo-called zero-dimensional perovskites, such as Cs4PbBr6, promise outstanding emissive properties. However, Cs4PbBr6 is mostly prepared by melting of precursors that usually leads to a coformation of undesired phases. Here, we report a simple low-temperature solution-processed synthesis of pure Cs4PbBr6 with remarkable emission properties. We found that pure Cs4PbBr6 in solid form exhibits a 45% photoluminescence quantum yield (PLQY), in contrast to its three-dimensional counterpart, CsPbBr3, which exhibits more than 2 orders of magnitude lower PLQY. Such a PLQY of Cs4PbBr6 is significantly higher than that of other solid forms of lower-dimensional metal halide perovskite derivatives and perovskite nanocrystals. We attribute this dramatic increase in PL to the high exciton binding energy, which we estimate to be ∼353 meV, likely induced by the unique Bergerhoff–Schmitz–Dumont-type crystal structure of Cs4PbBr6, in which metal-halide-comprised octahedra are spatially confined. Our findings bring this class of perovskite derivatives to the forefront of color-converting and light-emitting applications.en
dc.description.sponsorshipThe authors acknowledge the support of King Abdullah University of Science and Technology (KAUST).en
dc.publisherAmerican Chemical Society (ACS)en
dc.relation.urlhttp://pubs.acs.org/doi/full/10.1021/acsenergylett.6b00396en
dc.rightsThis is an open access article published under an ACS AuthorChoice License, which permits copying and redistribution of the article or any adaptations for non-commercial purposes.en
dc.rights.urihttp://pubs.acs.org/page/policy/authorchoice_termsofuse.htmlen
dc.titlePure Cs4PbBr6: Highly Luminescent Zero-Dimensional Perovskite Solidsen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalACS Energy Lettersen
dc.eprint.versionPublisher's Version/PDFen
kaust.authorSaidaminov, Makhsud I.en
kaust.authorAlmutlaq, Jawaheren
kaust.authorSarmah, Smritakshi P.en
kaust.authorDursun, Ibrahimen
kaust.authorZhumekenov, Ayan A.en
kaust.authorBegum, Raihanaen
kaust.authorPan, Junen
kaust.authorCho, Nam Chulen
kaust.authorMohammed, Omar F.en
kaust.authorBakr, Osman M.en
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