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dc.contributor.authorHutter, Eline M
dc.contributor.authorSutton, Rebecca J
dc.contributor.authorChandrashekar, Sanjana
dc.contributor.authorAbdi-Jalebi, Mojtaba
dc.contributor.authorStranks, Samuel
dc.contributor.authorSnaith, Henry J
dc.contributor.authorSavenije, Tom J
dc.date.accessioned2018-11-01T14:02:30Z
dc.date.available2018-11-01T14:02:30Z
dc.date.issued2017-08-11
dc.identifier.issn2380-8195
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/284492
dc.description.abstractMetal halide perovskites such as methylammonium lead iodide (MAPbI3) are highly promising materials for photovoltaics. However, the relationship between the organic nature of the cation and the optoelectronic quality remains debated. In this work, we investigate the optoelectronic properties of fully inorganic vapour-deposited and spin-coated black-phase CsPbI3 thin films. Using the time-resolved microwave conductivity technique, we measure charge carrier mobilities up to 25 cm2/(V s) and impressively long charge carrier lifetimes exceeding 10 μs for vapour-deposited CsPbI3, while the carrier lifetime reaches less than 0.2 μs in the spin-coated samples. Finally, we show that these improved lifetimes result in enhanced device performance with power conversion efficiencies close to 9%. Altogether, these results suggest that the charge carrier mobility and recombination lifetime are mainly dictated by the inorganic framework rather than the organic nature of the cation.
dc.format.mediumPrint-Electronic
dc.languageeng
dc.publisherAmerican Chemical Society (ACS)
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleVapour-Deposited Cesium Lead Iodide Perovskites: Microsecond Charge Carrier Lifetimes and Enhanced Photovoltaic Performance.
dc.typeArticle
prism.endingPage1908
prism.issueIdentifier8
prism.publicationDate2017
prism.publicationNameACS Energy Lett
prism.startingPage1901
prism.volume2
dc.identifier.doi10.17863/CAM.31868
dcterms.dateAccepted2017-07-28
rioxxterms.versionofrecord10.1021/acsenergylett.7b00591
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2017-08
dc.contributor.orcidStranks, Samuel [0000-0002-8303-7292]
dc.identifier.eissn2380-8195
rioxxterms.typeJournal Article/Review
cam.issuedOnline2017-08-02


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Attribution-NonCommercial-NoDerivatives 4.0 International
Except where otherwise noted, this item's licence is described as Attribution-NonCommercial-NoDerivatives 4.0 International