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dc.contributor.authorNienhaus, Lea
dc.contributor.authorBawendi, Moungi G
dc.contributor.authorCorrea-Baena, Juan-Pablo
dc.date.accessioned2020-06-23T20:20:34Z
dc.date.available2020-06-23T20:20:34Z
dc.date.issued2017-12
dc.date.submitted2017-10
dc.identifier.issn1754-5706
dc.identifier.urihttps://hdl.handle.net/1721.1/125961
dc.description.abstractPerovskite solar cells (PSCs) are very promising lab-scale technologies to deliver inexpensive solar electricity. Low-temperature, planar PSCs are of particularly interest for large-scale deployment due to their inherent suitability for flexible substrates and potential for silicon/perovskite tandems. So far, planar PSCs have been prone to large current-voltage hysteresis and low stabilized power output due to a number of issues associated with this kind of device configuration. We find that the suppression of the yellow-phase impurity (∂-FAPbI3) present in formamidium-based perovskites, by RbI addition, contributes to low hysteresis, higher charge carrier mobility, long-lived carrier lifetimes and a champion stabilized power output of 20.3% using SnOx as the electron selective contact. We study the effects of these impurities on the transient behavior that defines hysteresis and its relation to ionic movement. In addition, we find that the formation of a RbPbI3 phase does not significantly affect the charge carrier lifetimes and consequently the performance of the devices. This brings new physical insights onto the role of different impurities in perovskite solar cells, which make these materials so remarkable.en_US
dc.description.sponsorshipUS Department of Energy, Office of Science, Office of Basic Energy Sciences (award no. DE-SC0001088)en_US
dc.language.isoen
dc.publisherRoyal Society of Chemistry (RSC)en_US
dc.relation.isversionof10.1039/C7EE02901Ben_US
dc.rightsCreative Commons Attribution-Noncommercial-Share Alikeen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/en_US
dc.sourceOther repositoryen_US
dc.titleEnhanced charge carrier mobility and lifetime suppress hysteresis and improve efficiency in planar perovskite solar cellsen_US
dc.typeArticleen_US
dc.identifier.citationTurren-Cruz, Silver-Hamill, et al., "Enhanced charge carrier mobility and lifetime suppress hysteresis and improve efficiency in planar perovskite solar cells." Energy and Environmental Science 10, 1 (Dec. 2017): doi 10.1039/C7EE02901B ©2017 Author(s)en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Chemistryen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Mechanical Engineeringen_US
dc.relation.journalEnergy and Environmental Scienceen_US
dc.eprint.versionAuthor's final manuscripten_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2019-12-12T17:23:46Z
dspace.orderedauthorsSilver-Hamill Turren-Cruz ; Michael Saliba ; Matthew T. Mayer ; Hector Juárez Santiesteban ; Xavier Mathew ; Lea Nienhaus ; Wolfgang Tress ; Matthew P. Erodici ; Meng-Ju Sher ; Moungi G. Bawendi ; Michael Grätzel ; Antonio Abate ; Anders Hagfeldt ; Juan-Pablo Correa-Baenaen_US
dspace.date.submission2019-12-12T17:23:48Z
mit.journal.volume10en_US
mit.journal.issue1en_US
mit.metadata.statusComplete


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