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dc.contributor.authorXu, Fuzong
dc.contributor.authorLiu, Jiang
dc.contributor.authorSubbiah, Anand Selvin
dc.contributor.authorLiu, Wenzhu
dc.contributor.authorKang, Jingxuan
dc.contributor.authorHarrison, George T.
dc.contributor.authorYang, Xinbo
dc.contributor.authorIsikgor, Furkan Halis
dc.contributor.authorAydin, Erkan
dc.contributor.authorde Bastiani, Michele
dc.contributor.authorDe Wolf, Stefaan
dc.date.accessioned2021-02-10T08:13:02Z
dc.date.available2021-02-10T08:13:02Z
dc.date.issued2021-02-07
dc.date.submitted2020-10-29
dc.identifier.citationXu, F., Liu, J., Subbiah, A. S., Liu, W., Kang, J., Harrison, G. T., … De Wolf, S. (2021). Potassium Thiocyanate-Assisted Enhancement of Slot-Die-Coated Perovskite Films for High-Performance Solar Cells. Small Science, 2000044. doi:10.1002/smsc.202000044
dc.identifier.issn2688-4046
dc.identifier.issn2688-4046
dc.identifier.doi10.1002/smsc.202000044
dc.identifier.doi10.1002/smsc.202170013
dc.identifier.urihttp://hdl.handle.net/10754/667324
dc.description.abstractSlot-die coating is highly promising for scaled deposition of metal halide perovskite thin films. However, the power conversion efficiencies (PCEs) of slot-die-prepared perovskite solar cells (PSCs) still lag behind their spin-casted counterparts. To resolve this issue, the crystal size and quality of slot-die-coated methylammonium lead triiodide (MAPbI3) perovskite films are dramatically improved via additive engineering using potassium thiocyanate (KSCN). The modified micrometer-thick films have an average grain size of ≈11 μm and charge-carrier parameters that are comparable with single-crystal perovskites, such as a 1.89 μs lifetime, 136.65 ± 31.52 cm2 V−1 s−1 mobility, and 25.15 ± 3.55 μm diffusion length. Exploiting these enhanced properties, planar inverted PSCs with negligible hysteresis are fabricated and an average and a maximum PCE of 20.14% and 21.38%, respectively, are achieved which are among the highest reported values for slot-die-coated PSCs. Notably, our devices have a narrow PCE distribution along the slot-die coating axis, highlighting slot-die coating's promise to fabricate large-scale, high-performance PSCs.
dc.description.sponsorshipF.X. and J.L. contributed equally to this work. This work was supported by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under award nos.: OSR-2019-CARF/CCF-3097 and OSR-2019-CRG-4093
dc.publisherWiley
dc.relation.urlhttps://onlinelibrary.wiley.com/doi/10.1002/smsc.202000044
dc.rightsThis is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.titlePotassium Thiocyanate-Assisted Enhancement of Slot-Die-Coated Perovskite Films for High-Performance Solar Cells
dc.typeArticle
dc.contributor.departmentKAUST Solar Center (KSC)
dc.contributor.departmentMaterial Science and Engineering
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalSmall Science
dc.eprint.versionPublisher's Version/PDF
dc.identifier.pages2000044
kaust.personXu, Fuzong
kaust.personLiu, Jiang
kaust.personSubbiah, Anand Selvin
kaust.personLiu, Wenzhu
kaust.personKang, Jingxuan
kaust.personHarrison, George T.
kaust.personYang, Xinbo
kaust.personIsikgor, Furkan Halis
kaust.personAydin, Erkan
kaust.personde Bastiani, Michele
kaust.personDe Wolf, Stefaan
kaust.grant.numberOSR-2019-CARF/CCF-3097
kaust.grant.numberOSR-2019-CRG-4093
dc.date.accepted2021-01-03
refterms.dateFOA2021-02-10T08:14:10Z
kaust.acknowledged.supportUnitCCF
kaust.acknowledged.supportUnitOffice of Sponsored Research (OSR)
dc.date.published-online2021-02-07
dc.date.published-print2021-05


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This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Except where otherwise noted, this item's license is described as This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.