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dc.contributor.authorTennyson, Beth
dc.contributor.authorAbdi-Jalebi, M
dc.contributor.authorJi, K
dc.contributor.authorGarrett, JL
dc.contributor.authorGong, C
dc.contributor.authorPawlicki, AA
dc.contributor.authorOvchinnikova, OS
dc.contributor.authorMunday, JN
dc.contributor.authorStranks, Samuel
dc.contributor.authorLeite, MS
dc.date.accessioned2020-06-18T23:30:33Z
dc.date.available2020-06-18T23:30:33Z
dc.date.issued2020-09
dc.identifier.issn2196-7350
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/306948
dc.description.abstractPerovskite semiconductors are an exciting class of materials due to their promising performance outputs in optoelectronic devices. To boost their efficiency further, researchers introduce additives during sample synthesis, such as KI. However, it is not well understood how KI changes the material and, often, leaves precipitants. To fully resolve the role of KI, a multiple microscopy techniques is applied and the electrical and chemical behavior of a Reference (untreated) and a KI-treated perovskite are compared. Upon correlation between electrical and chemical nanoimaging techniques, it is discovered that these local properties are linked to the macroscopic voltage enhancement of the KI-treated perovskite. The heterogeneity revealed in both the local electrical and chemical responses indicates that the additive partially migrates to the surface, yet surprisingly; does not deteriorate the performance locally, rather, the voltage response homogeneously increases. The research presented within provides a diagnostic methodology, which connects the nanoscale electrical and chemical properties of materials, relevant to other perovskites, including multication and Pb-free alternatives.
dc.description.sponsorshipUniversity of Maryland All-S.T.A.R. Fellowship Hulka Energy Research Fellowship National Science Foundation US Department of Energy The Royal Society Office of Naval Research
dc.publisherWiley
dc.rightsAll rights reserved
dc.titleCorrelated Electrical and Chemical Nanoscale Properties in Potassium-Passivated, Triple-Cation Perovskite Solar Cells
dc.typeArticle
prism.publicationDate2020
prism.publicationNameAdvanced Materials Interfaces
dc.identifier.doi10.17863/CAM.54043
dcterms.dateAccepted2020-06-03
rioxxterms.versionofrecord10.1002/admi.202000515
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2020-01-01
dc.contributor.orcidTennyson, Beth [0000-0003-0071-8445]
dc.contributor.orcidAbdi-Jalebi, M [0000-0002-9430-6371]
dc.contributor.orcidJi, K [0000-0002-1278-3212]
dc.contributor.orcidGarrett, JL [0000-0001-8265-0661]
dc.contributor.orcidGong, C [0000-0003-3302-7675]
dc.contributor.orcidPawlicki, AA [0000-0001-6843-3353]
dc.contributor.orcidOvchinnikova, OS [0000-0001-8935-2309]
dc.contributor.orcidMunday, JN [0000-0002-0881-9876]
dc.contributor.orcidStranks, Samuel [0000-0002-8303-7292]
dc.contributor.orcidLeite, MS [0000-0003-4888-8195]
dc.identifier.eissn2196-7350
rioxxterms.typeJournal Article/Review
pubs.funder-project-idRoyal Society (UF150033)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/R023980/1)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/M005143/1)
cam.issuedOnline2020-07-10
cam.orpheus.successMon Jul 13 08:26:59 BST 2020 - Embargo updated
cam.orpheus.counter4
rioxxterms.freetoread.startdate2021-07-10


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