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Unveiling the additive-assisted oriented growth of perovskite crystallite for high performance light-emitting diodes.

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cam.issuedOnline2021-08-23
dc.contributor.authorZhu, Lin
dc.contributor.authorCao, Hui
dc.contributor.authorXue, Chen
dc.contributor.authorZhang, Hao
dc.contributor.authorQin, Minchao
dc.contributor.authorWang, Jie
dc.contributor.authorWen, Kaichuan
dc.contributor.authorFu, Zewu
dc.contributor.authorJiang, Tao
dc.contributor.authorXu, Lei
dc.contributor.authorZhang, Ya
dc.contributor.authorCao, Yu
dc.contributor.authorTu, Cailing
dc.contributor.authorZhang, Ju
dc.contributor.authorLiu, Dawei
dc.contributor.authorZhang, Guangbin
dc.contributor.authorKong, Decheng
dc.contributor.authorFan, Ning
dc.contributor.authorLi, Gongqiang
dc.contributor.authorYi, Chang
dc.contributor.authorPeng, Qiming
dc.contributor.authorChang, Jin
dc.contributor.authorLu, Xinhui
dc.contributor.authorWang, Nana
dc.contributor.authorHuang, Wei
dc.contributor.authorWang, Jianpu
dc.contributor.orcidXue, Chen [0000-0002-0462-9637]
dc.contributor.orcidQin, Minchao [0000-0001-8819-2307]
dc.contributor.orcidCao, Yu [0000-0003-2460-2228]
dc.contributor.orcidLi, Gongqiang [0000-0003-4567-4976]
dc.contributor.orcidPeng, Qiming [0000-0002-7558-3234]
dc.contributor.orcidLu, Xinhui [0000-0002-1908-3294]
dc.contributor.orcidWang, Nana [0000-0003-2098-5778]
dc.contributor.orcidHuang, Wei [0000-0001-7004-6408]
dc.contributor.orcidWang, Jianpu [0000-0002-2158-8689]
dc.date.accessioned2021-10-26T23:30:35Z
dc.date.available2021-10-26T23:30:35Z
dc.date.issued2021-08-23
dc.description.abstractSolution-processed metal halide perovskites have been recognized as one of the most promising semiconductors, with applications in light-emitting diodes (LEDs), solar cells and lasers. Various additives have been widely used in perovskite precursor solutions, aiming to improve the formed perovskite film quality through passivating defects and controlling the crystallinity. The additive's role of defect passivation has been intensively investigated, while a deep understanding of how additives influence the crystallization process of perovskites is lacking. Here, we reveal a general additive-assisted crystal formation pathway for FAPbI3 perovskite with vertical orientation, by tracking the chemical interaction in the precursor solution and crystallographic evolution during the film formation process. The resulting understanding motivates us to use a new additive with multi-functional groups, 2-(2-(2-Aminoethoxy)ethoxy)acetic acid, which can facilitate the orientated growth of perovskite and passivate defects, leading to perovskite layer with high crystallinity and low defect density and thereby record-high performance NIR perovskite LEDs (~800 nm emission peak, a peak external quantum efficiency of 22.2% with enhanced stability).
dc.format.mediumElectronic
dc.identifier.doi10.17863/CAM.77364
dc.identifier.eissn2041-1723
dc.identifier.issn2041-1723
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/329921
dc.languageeng
dc.language.isoeng
dc.publisherSpringer Science and Business Media LLC
dc.publisher.urlhttp://dx.doi.org/10.1038/s41467-021-25407-8
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subject3403 Macromolecular and Materials Chemistry
dc.subject34 Chemical Sciences
dc.subject3406 Physical Chemistry
dc.subject40 Engineering
dc.subject4016 Materials Engineering
dc.titleUnveiling the additive-assisted oriented growth of perovskite crystallite for high performance light-emitting diodes.
dc.typeArticle
dcterms.dateAccepted2021-08-05
prism.issueIdentifier1
prism.publicationDate2021
prism.publicationNameNat Commun
prism.startingPage5081
prism.volume12
rioxxterms.licenseref.startdate2021-08-23
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.typeJournal Article/Review
rioxxterms.versionVoR
rioxxterms.versionofrecord10.1038/s41467-021-25407-8

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