High-phase purity two-dimensional perovskites with 17.3% efficiency enabled by interface engineering of hole transport layer

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dc.citation.articleNumber100601
dc.citation.issueNumber10
dc.citation.journalTitleCell Reports Physical Science
dc.citation.volumeNumber2
dc.contributor.authorSidhik, Siraj
dc.contributor.authorWang, Yafei
dc.contributor.authorLi, Wenbin
dc.contributor.authorZhang, Hao
dc.contributor.authorZhong, Xinjue
dc.contributor.authorAgrawal, Ayush
dc.contributor.authorHadar, Ido
dc.contributor.authorSpanopoulos, Ioannis
dc.contributor.authorMishra, Anamika
dc.contributor.authorTraoré, Boubacar
dc.contributor.authorSamani, Mohammad H. K.
dc.contributor.authorKatan, Claudine
dc.contributor.authorMarciel, Amanda B.
dc.contributor.authorBlancon, Jean-Christophe
dc.contributor.authorEven, Jacky
dc.contributor.authorKahn, Antoine
dc.contributor.authorKanatzidis, Mercouri G.
dc.contributor.authorMohite, Aditya D.
dc.date.accessioned2021-12-15T22:10:16Z
dc.date.available2021-12-15T22:10:16Z
dc.date.issued2021
dc.description.abstractState-of-the-art p-i-n-based 3D perovskite solar cells (PSCs) use nickel oxide (NiOX) as an efficient hole transport layer (HTL), achieving efficiencies >22%. However, translating this to phase-pure 2D perovskites has been unsuccessful. Here, we report 2D phase-pure Ruddlesden-Popper BA2MA3Pb4I13 perovskites with 17.3% efficiency enabled by doping the NiOX with Li. Our results show that progressively increasing the doping concentration transforms the photoresistor behavior to a typical diode curve, with an increase in the average efficiency from 2.53% to 16.03% with a high open-circuit voltage of 1.22 V. Analysis reveals that Li doping of NiOX significantly improves the morphology, crystallinity, and orientation of 2D perovskite films and also affords a superior band alignment, facilitating efficient charge extraction. Finally, we demonstrate that 2D PSCs with Li-doped NiOX exhibit excellent photostability, with T99 = 400 h at 1 sun and T90 of 100 h at 5 suns measured at relative humidity of 60% ± 5% without the need for external thermal management.
dc.identifier.citationSidhik, Siraj, Wang, Yafei, Li, Wenbin, et al.. "High-phase purity two-dimensional perovskites with 17.3% efficiency enabled by interface engineering of hole transport layer." <i>Cell Reports Physical Science,</i> 2, no. 10 (2021) Elsevier: https://doi.org/10.1016/j.xcrp.2021.100601.
dc.identifier.digital1-s2-0-S2666386421003167-main
dc.identifier.doihttps://doi.org/10.1016/j.xcrp.2021.100601
dc.identifier.urihttps://hdl.handle.net/1911/111788
dc.language.isoeng
dc.publisherElsevier
dc.rightsThis is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/).
dc.titleHigh-phase purity two-dimensional perovskites with 17.3% efficiency enabled by interface engineering of hole transport layer
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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