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dc.contributor.authorKim, Hobeom
dc.contributor.authorKim, Joo Sung
dc.contributor.authorHeo, Jung-Min
dc.contributor.authorPei, Mingyuan
dc.contributor.authorPark, In-Hyeok
dc.contributor.authorLiu, Zhun
dc.contributor.authorYun, Hyung Joong
dc.contributor.authorPark, Min-Ho
dc.contributor.authorJeong, Su-Hun
dc.contributor.authorKim, Young-Hoon
dc.contributor.authorPark, Jin-Woo
dc.contributor.authorOveisi, Emad
dc.contributor.authorNagane, Satyawan
dc.contributor.authorSadhanala, Aditya
dc.contributor.authorZhang, Lijun
dc.contributor.authorKweon, Jin Jung
dc.contributor.authorLee, Sung Keun
dc.contributor.authorYang, Hoichang
dc.contributor.authorJang, Hyun Myung
dc.contributor.authorFriend, Richard H.
dc.contributor.authorLoh, Kian Ping
dc.contributor.authorNazeeruddin, Mohammad Khaja
dc.contributor.authorPark, Nam-Gyu
dc.contributor.authorLee, Tae-Woo
dc.date.accessioned2021-07-07T14:05:19Z
dc.date.available2021-07-07T14:05:19Z
dc.date.issued2020-07-06
dc.date.submitted2019-08-27
dc.identifier.others41467-020-17072-0
dc.identifier.other17072
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/324908
dc.description.abstractAbstract: Perovskite light-emitting diodes (PeLEDs) based on three-dimensional (3D) polycrystalline perovskites suffer from ion migration, which causes overshoot of luminance over time during operation and reduces its operational lifetime. Here, we demonstrate 3D/2D hybrid PeLEDs with extremely reduced luminance overshoot and 21 times longer operational lifetime than 3D PeLEDs. The luminance overshoot ratio of 3D/2D hybrid PeLED is only 7.4% which is greatly lower than that of 3D PeLED (150.4%). The 3D/2D hybrid perovskite is obtained by adding a small amount of neutral benzylamine to methylammonium lead bromide, which induces a proton transfer from methylammonium to benzylamine and enables crystallization of 2D perovskite without destroying the 3D phase. Benzylammonium in the perovskite lattice suppresses formation of deep-trap states and ion migration, thereby enhances both operating stability and luminous efficiency based on its retardation effect in reorientation.
dc.languageen
dc.publisherNature Publishing Group UK
dc.subjectArticle
dc.subject/639/638
dc.subject/639/301
dc.subject/639/624
dc.subject/639/766
dc.subject/128
dc.subject/119
dc.subject/120
dc.subject/147/135
dc.subject/147/137
dc.subject/140/131
dc.subject/140/125
dc.subject/145
dc.subjectarticle
dc.titleProton-transfer-induced 3D/2D hybrid perovskites suppress ion migration and reduce luminance overshoot
dc.typeArticle
dc.date.updated2021-07-07T14:05:18Z
prism.issueIdentifier1
prism.publicationNameNature Communications
prism.volume11
dc.identifier.doi10.17863/CAM.72362
dcterms.dateAccepted2020-06-02
rioxxterms.versionofrecord10.1038/s41467-020-17072-0
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/
dc.contributor.orcidKim, Hobeom [0000-0002-5296-8975]
dc.contributor.orcidKim, Joo Sung [0000-0002-7465-3085]
dc.contributor.orcidHeo, Jung-Min [0000-0002-6094-210X]
dc.contributor.orcidPark, In-Hyeok [0000-0003-1371-6641]
dc.contributor.orcidPark, Jin-Woo [0000-0002-8544-1643]
dc.contributor.orcidOveisi, Emad [0000-0001-7483-7880]
dc.contributor.orcidZhang, Lijun [0000-0002-6438-5486]
dc.contributor.orcidLee, Sung Keun [0000-0002-3149-3421]
dc.contributor.orcidJang, Hyun Myung [0000-0002-1889-9515]
dc.contributor.orcidFriend, Richard H. [0000-0001-6565-6308]
dc.contributor.orcidLoh, Kian Ping [0000-0002-1491-743X]
dc.contributor.orcidNazeeruddin, Mohammad Khaja [0000-0001-5955-4786]
dc.contributor.orcidPark, Nam-Gyu [0000-0003-2368-6300]
dc.contributor.orcidLee, Tae-Woo [0000-0002-6449-6725]
dc.identifier.eissn2041-1723
pubs.funder-project-idMinistry of Science, ICT and Future Planning (MSIP) (NRF-2016R1A3B1908431, NRF-2014M3A6A7060583, 2017R1A2A1A17069511)


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