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dc.contributor.authorKarlsson, Max
dc.contributor.authorYi, Ziyue
dc.contributor.authorReichert, Sebastian
dc.contributor.authorLuo, Xiyu
dc.contributor.authorLin, Weihua
dc.contributor.authorZhang, Zeyu
dc.contributor.authorBao, Chunxiong
dc.contributor.authorZhang, Rui
dc.contributor.authorBai, Sai
dc.contributor.authorZheng, Guanhaojie
dc.contributor.authorTeng, Pengpeng
dc.contributor.authorDuan, Lian
dc.contributor.authorLu, Yue
dc.contributor.authorZheng, Kaibo
dc.contributor.authorPullerits, Tönu
dc.contributor.authorDeibel, Carsten
dc.contributor.authorXu, Weidong
dc.contributor.authorFriend, Richard
dc.contributor.authorGao, Feng
dc.date.accessioned2021-01-13T17:22:27Z
dc.date.available2021-01-13T17:22:27Z
dc.date.issued2021-01-13
dc.date.submitted2020-10-14
dc.identifier.others41467-020-20582-6
dc.identifier.other20582
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/316148
dc.descriptionFunder: ERC Starting Grant (No. 717026)
dc.description.abstractAbstract: Bright and efficient blue emission is key to further development of metal halide perovskite light-emitting diodes. Although modifying bromide/chloride composition is straightforward to achieve blue emission, practical implementation of this strategy has been challenging due to poor colour stability and severe photoluminescence quenching. Both detrimental effects become increasingly prominent in perovskites with the high chloride content needed to produce blue emission. Here, we solve these critical challenges in mixed halide perovskites and demonstrate spectrally stable blue perovskite light-emitting diodes over a wide range of emission wavelengths from 490 to 451 nanometres. The emission colour is directly tuned by modifying the halide composition. Particularly, our blue and deep-blue light-emitting diodes based on three-dimensional perovskites show high EQE values of 11.0% and 5.5% with emission peaks at 477 and 467 nm, respectively. These achievements are enabled by a vapour-assisted crystallization technique, which largely mitigates local compositional heterogeneity and ion migration.
dc.languageen
dc.publisherNature Publishing Group UK
dc.rightsAttribution 4.0 International (CC BY 4.0)en
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subjectArticle
dc.subject/639/301/1005/1007
dc.subject/639/301/1019/1020
dc.subject/120
dc.subject/128
dc.subjectarticle
dc.titleMixed halide perovskites for spectrally stable and high-efficiency blue light-emitting diodes
dc.typeArticle
dc.date.updated2021-01-13T17:22:26Z
prism.issueIdentifier1
prism.publicationNameNature Communications
prism.volume12
dc.identifier.doi10.17863/CAM.63256
dcterms.dateAccepted2020-12-09
rioxxterms.versionofrecord10.1038/s41467-020-20582-6
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/
dc.contributor.orcidKarlsson, Max [0000-0003-2750-552X]
dc.contributor.orcidReichert, Sebastian [0000-0003-3214-7114]
dc.contributor.orcidBao, Chunxiong [0000-0001-7076-7635]
dc.contributor.orcidBai, Sai [0000-0001-7623-686X]
dc.contributor.orcidPullerits, Tönu [0000-0003-1428-5564]
dc.contributor.orcidDeibel, Carsten [0000-0002-3061-7234]
dc.contributor.orcidXu, Weidong [0000-0002-0767-3086]
dc.contributor.orcidFriend, Richard [0000-0001-6565-6308]
dc.contributor.orcidGao, Feng [0000-0002-2582-1740]
dc.identifier.eissn2041-1723


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