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

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dc.citation.articleNumber100601en_US
dc.citation.issueNumber10en_US
dc.citation.journalTitleCell Reports Physical Scienceen_US
dc.citation.volumeNumber2en_US
dc.contributor.authorSidhik, Sirajen_US
dc.contributor.authorWang, Yafeien_US
dc.contributor.authorLi, Wenbinen_US
dc.contributor.authorZhang, Haoen_US
dc.contributor.authorZhong, Xinjueen_US
dc.contributor.authorAgrawal, Ayushen_US
dc.contributor.authorHadar, Idoen_US
dc.contributor.authorSpanopoulos, Ioannisen_US
dc.contributor.authorMishra, Anamikaen_US
dc.contributor.authorTraoré, Boubacaren_US
dc.contributor.authorSamani, Mohammad H. K.en_US
dc.contributor.authorKatan, Claudineen_US
dc.contributor.authorMarciel, Amanda B.en_US
dc.contributor.authorBlancon, Jean-Christopheen_US
dc.contributor.authorEven, Jackyen_US
dc.contributor.authorKahn, Antoineen_US
dc.contributor.authorKanatzidis, Mercouri G.en_US
dc.contributor.authorMohite, Aditya D.en_US
dc.date.accessioned2021-12-15T22:10:16Zen_US
dc.date.available2021-12-15T22:10:16Zen_US
dc.date.issued2021en_US
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.en_US
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.en_US
dc.identifier.digital1-s2-0-S2666386421003167-mainen_US
dc.identifier.doihttps://doi.org/10.1016/j.xcrp.2021.100601en_US
dc.identifier.urihttps://hdl.handle.net/1911/111788en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsThis is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).en_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/).en_US
dc.titleHigh-phase purity two-dimensional perovskites with 17.3% efficiency enabled by interface engineering of hole transport layeren_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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