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Article: Strongly Luminescent Dion–Jacobson Tin Bromide Perovskite Microcrystals Induced by Molecular Proton Donors Chloroform and Dichloromethane

TitleStrongly Luminescent Dion–Jacobson Tin Bromide Perovskite Microcrystals Induced by Molecular Proton Donors Chloroform and Dichloromethane
Authors
KeywordsDion–Jacobson structure
molecular dopants
photoluminescence
proton donors
tin–bromide perovskites
Issue Date2021
PublisherWiley - VCH Verlag GmbH & Co KGaA. The Journal's web site is located at http://www.wiley-vch.de/home/afm
Citation
Advanced Functional Materials, 2021, Epub 2021-04-29, p. article no. 2102182 How to Cite?
AbstractLead-free 2D perovskites based on tin halide octahedron slabs with Dion–Jacobson (DJ) phases have drawn attention due to their improved stability; still, reports on light-emitting DJ lead-free perovskites are scarce. Herein, a room-temperature ligand assisted re-precipitation method is used to produce ODASnBr4 perovskite microcrystals (ODA denotes protonated 1,8-octanediamine). After incorporating molecular dopants chloroform and dichloromethane, not only the crystallinity of the DJ perovskite phase improves, but their emission becomes much stronger due to the formation of hydrogen bonds between [SnBr6]4− octahedra and acidic CH proton donors. ODASnBr4 microcrystals doped with these molecules show a high photoluminescence quantum yield (PLQY) approaching 90%, and their emission remains stable under a continuous UV irradiation, with less than 10% loss in intensity over 6 h. Moreover, by tuning the pristine ODASnBr4 with various degrees of exposure to the molecular dopants, the maximum of their self-trapped exciton emission can be fine-tuned over a spectral range of 570–608 nm while maintaining high PLQYs of 83–88%. This provides a convenient way to adjust the spectral position of DJ perovskite emission without changing halides or A-site spacers. Thus, stable and strongly emitting lead-free DJ perovskite materials have been developed.
Persistent Identifierhttp://hdl.handle.net/10722/299737
ISSN
2023 Impact Factor: 18.5
2023 SCImago Journal Rankings: 5.496
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWang, S-
dc.contributor.authorPopović, J-
dc.contributor.authorBurazer, S-
dc.contributor.authorPortniagin, A-
dc.contributor.authorLiu, F-
dc.contributor.authorLow, KH-
dc.contributor.authorDuan, Z-
dc.contributor.authorLi, Y-
dc.contributor.authorXiong, Y-
dc.contributor.authorZhu, Y-
dc.contributor.authorKershaw, SV-
dc.contributor.authorDjurisic, AB-
dc.contributor.authorRogach, AL-
dc.date.accessioned2021-05-26T03:28:21Z-
dc.date.available2021-05-26T03:28:21Z-
dc.date.issued2021-
dc.identifier.citationAdvanced Functional Materials, 2021, Epub 2021-04-29, p. article no. 2102182-
dc.identifier.issn1616-301X-
dc.identifier.urihttp://hdl.handle.net/10722/299737-
dc.description.abstractLead-free 2D perovskites based on tin halide octahedron slabs with Dion–Jacobson (DJ) phases have drawn attention due to their improved stability; still, reports on light-emitting DJ lead-free perovskites are scarce. Herein, a room-temperature ligand assisted re-precipitation method is used to produce ODASnBr4 perovskite microcrystals (ODA denotes protonated 1,8-octanediamine). After incorporating molecular dopants chloroform and dichloromethane, not only the crystallinity of the DJ perovskite phase improves, but their emission becomes much stronger due to the formation of hydrogen bonds between [SnBr6]4− octahedra and acidic CH proton donors. ODASnBr4 microcrystals doped with these molecules show a high photoluminescence quantum yield (PLQY) approaching 90%, and their emission remains stable under a continuous UV irradiation, with less than 10% loss in intensity over 6 h. Moreover, by tuning the pristine ODASnBr4 with various degrees of exposure to the molecular dopants, the maximum of their self-trapped exciton emission can be fine-tuned over a spectral range of 570–608 nm while maintaining high PLQYs of 83–88%. This provides a convenient way to adjust the spectral position of DJ perovskite emission without changing halides or A-site spacers. Thus, stable and strongly emitting lead-free DJ perovskite materials have been developed.-
dc.languageeng-
dc.publisherWiley - VCH Verlag GmbH & Co KGaA. The Journal's web site is located at http://www.wiley-vch.de/home/afm-
dc.relation.ispartofAdvanced Functional Materials-
dc.rightsSubmitted (preprint) Version This is the pre-peer reviewed version of the following article: [FULL CITE], which has been published in final form at [Link to final article using the DOI]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. Accepted (peer-reviewed) Version This is the peer reviewed version of the following article: [FULL CITE], which has been published in final form at [Link to final article using the DOI]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.-
dc.subjectDion–Jacobson structure-
dc.subjectmolecular dopants-
dc.subjectphotoluminescence-
dc.subjectproton donors-
dc.subjecttin–bromide perovskites-
dc.titleStrongly Luminescent Dion–Jacobson Tin Bromide Perovskite Microcrystals Induced by Molecular Proton Donors Chloroform and Dichloromethane-
dc.typeArticle-
dc.identifier.emailLiu, F: liufz@hku.hk-
dc.identifier.emailDjurisic, AB: dalek@hku.hk-
dc.identifier.authorityDjurisic, AB=rp00690-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/adfm.202102182-
dc.identifier.scopuseid_2-s2.0-85109395307-
dc.identifier.hkuros322513-
dc.identifier.volumeEpub 2021-04-29-
dc.identifier.spagearticle no. 2102182-
dc.identifier.epagearticle no. 2102182-
dc.identifier.isiWOS:000645079200001-
dc.publisher.placeGermany-

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