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dc.contributor.authorGuo, R
dc.contributor.authorHan, D
dc.contributor.authorChen, W
dc.contributor.authorDai, Linjie
dc.contributor.authorJi, K
dc.contributor.authorXiong, Q
dc.contributor.authorLi, S
dc.contributor.authorReb, LK
dc.contributor.authorScheel, MA
dc.contributor.authorPratap, S
dc.contributor.authorLi, N
dc.contributor.authorYin, S
dc.contributor.authorXiao, T
dc.contributor.authorLiang, S
dc.contributor.authorOechsle, AL
dc.contributor.authorWeindl, CL
dc.contributor.authorSchwartzkopf, M
dc.contributor.authorEbert, H
dc.contributor.authorGao, P
dc.contributor.authorWang, K
dc.contributor.authorYuan, M
dc.contributor.authorGreenham, Neil
dc.contributor.authorStranks, Samuel
dc.contributor.authorRoth, SV
dc.contributor.authorFriend, Richard
dc.contributor.authorMüller-Buschbaum, P
dc.date.accessioned2021-10-25T23:31:30Z
dc.date.available2021-10-25T23:31:30Z
dc.date.issued2021-10
dc.identifier.issn2058-7546
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/329886
dc.description.abstractExtensive studies have focused on improving the operational stability of perovskite solar cells, but few have surveyed the fundamental degradation mechanisms. One aspect overlooked in earlier works is the effect of the atmosphere on device performance during operation. Here we investigate the degradation mechanisms of perovskite solar cells operated under vacuum and under a nitrogen atmosphere using synchrotron radiation-based operando grazing-incidence X-ray scattering methods. Unlike the observations described in previous reports, we find that light-induced phase segregation, lattice shrinkage and morphology deformation occur under vacuum. Under nitrogen, only lattice shrinkage appears during the operation of solar cells, resulting in better device stability. The different behaviour under nitrogen is attributed to a larger energy barrier for lattice distortion and phase segregation. Finally, we find that the migration of excessive PbI2 to the interface between the perovskite and the hole transport layer degrades the performance of devices under vacuum or under nitrogen.
dc.publisherSpringer Science and Business Media LLC
dc.rightsAll rights reserved
dc.rights.urihttp://www.rioxx.net/licenses/all-rights-reserved
dc.titleDegradation mechanisms of perovskite solar cells under vacuum and one atmosphere of nitrogen
dc.typeArticle
prism.endingPage986
prism.issueIdentifier10
prism.publicationDate2021
prism.publicationNameNature Energy
prism.startingPage977
prism.volume6
dc.identifier.doi10.17863/CAM.77331
dcterms.dateAccepted2021-09-01
rioxxterms.versionofrecord10.1038/s41560-021-00912-8
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2021-10-01
dc.contributor.orcidGuo, R [0000-0003-1116-3334]
dc.contributor.orcidHan, D [0000-0003-1890-4043]
dc.contributor.orcidChen, W [0000-0001-9550-0523]
dc.contributor.orcidDai, Linjie [0000-0002-1467-3041]
dc.contributor.orcidReb, LK [0000-0003-2838-9276]
dc.contributor.orcidScheel, MA [0000-0003-0508-6694]
dc.contributor.orcidPratap, S [0000-0002-7410-6823]
dc.contributor.orcidYin, S [0000-0002-5363-0837]
dc.contributor.orcidOechsle, AL [0000-0001-7161-3419]
dc.contributor.orcidWeindl, CL [0000-0003-1980-647X]
dc.contributor.orcidWang, K [0000-0003-0443-6955]
dc.contributor.orcidYuan, M [0000-0002-2790-9172]
dc.contributor.orcidGreenham, Neil [0000-0002-2155-2432]
dc.contributor.orcidStranks, Samuel [0000-0002-8303-7292]
dc.contributor.orcidRoth, SV [0000-0002-6940-6012]
dc.contributor.orcidFriend, Richard [0000-0001-6565-6308]
dc.contributor.orcidMüller-Buschbaum, P [0000-0002-9566-6088]
dc.identifier.eissn2058-7546
rioxxterms.typeJournal Article/Review
pubs.funder-project-idRoyal Society (UF150033)
pubs.funder-project-idEuropean Research Council (756962)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/R023980/1)
cam.issuedOnline2021-10-18
cam.orpheus.success2021-10-25 - Embargo set during processing via Fast-track
rioxxterms.freetoread.startdate2022-04-18


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