Ultrahydrophobic 3D/2D fluoroarene bilayer-based water-resistant perovskite solar cells with efficiencies exceeding 22%

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dc.authorid0000-0001-9852-7246en_US
dc.contributor.authorLiu, Yuhang
dc.contributor.authorAkın, Seçkin
dc.contributor.authorPan, Linfeng
dc.contributor.authorUchida, Ryusuke
dc.contributor.authorArora, Neha
dc.contributor.authorMilic, Jovana V.
dc.contributor.authorHinderhofer, Alexander
dc.date.accessioned2019-12-06T21:15:06Z
dc.date.available2019-12-06T21:15:06Z
dc.date.issued2019
dc.departmentKMÜ, Mühendislik Fakültesi, Metalurji ve Malzeme Mühendisliği Bölümüen_US
dc.descriptionWOS:000473798500066en_US
dc.descriptionPubMed:31187060en_US
dc.description.abstractPreventing the degradation of metal perovskite solar cells (PSCs) by humid air poses a substantial challenge for their future deployment. We introduce here a two-dimensional (2D) A(2)PbI(4) perovskite layer using pentafluoro-phenylethylammonium (FEA) as a fluoroarene cation inserted between the 3D light-harvesting perovskite film and the hole-transporting material (HTM). The perfluorinated benzene moiety confers an ultrahydrophobic character to the spacer layer, protecting the perovskite light-harvesting material from ambient moisture while mitigating ionic diffusion in the device. Unsealed 3D/2D PSCs retain 90% of their efficiency during photovoltaic operation for 1000 hours in humid air under simulated sunlight. Remarkably, the 2D layer also enhances interfacial hole extraction, suppressing nonradiative carrier recombination and enabling a power conversion efficiency (PCE) > 22%, the highest reported for 3D/2D architectures. Our new approach provides water-and heat-resistant operationally stable PSCs with a record-level PCE.en_US
dc.description.sponsorshipKing Abdulaziz City for Science and Technology (KACST); GreatCell Solar; TUBITAK 2214-A International Doctoral Research Fellowship ProgrammeTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK); Swiss National Science Foundation (SNSF)Swiss National Science Foundation (SNSF) [P300P2_174471]; SNSFSwiss National Science Foundation (SNSF) [P3P3P2_177790, IZLRZ2_164061]; European UnionEuropean Union (EU) [687008]en_US
dc.description.sponsorshipY.L., S.M.Z., and M.G. thank the King Abdulaziz City for Science and Technology (KACST) for the financial support. N.A. acknowledges the financial support from GreatCell Solar. S.A. thanks the TUBITAK 2214-A International Doctoral Research Fellowship Programme for supporting his researches at EPFL. M.I.D acknowledges the financial support from the Swiss National Science Foundation (SNSF) under project number P300P2_174471. A.R.U. acknowledges the financial support from the SNSF under project number P3P3P2_177790. J.V.M., S.M.Z., and M.G. are grateful to the SNSF for the financial support of the joint project IZLRZ2_164061 under the Scientific & Technological Cooperation Program Switzerland-Russia and the European Union's Horizon 2020 research and innovation program (under grant agreement no. 687008, GOTSolar).en_US
dc.identifier.citationLiu, Y., Akın, S., Pan, L., Uchida, R., Arora, N., ... Grätzel, M. (2019). Ultrahydrophobic 3D/2D fluoroarene bilayer-based water-resistant perovskite solar cells with efficiencies exceeding 22. Science Advances, 5, 6.
dc.identifier.doi10.1126/sciadv.aaw2543
dc.identifier.issn2375-2548
dc.identifier.issue6en_US
dc.identifier.pmid31187060
dc.identifier.scopus2-s2.0-85067291211
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://dx.doi.org/10.1126/sciadv.aaw2543
dc.identifier.urihttps://hdl.handle.net/11492/2434
dc.identifier.volume5en_US
dc.identifier.wosWOS:000473798500066
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Sceince
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.institutionauthorAkın, Seçkin
dc.language.isoen
dc.publisherAmer Assoc Advancement Scienceen_US
dc.relation.journalScience Advancesen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.titleUltrahydrophobic 3D/2D fluoroarene bilayer-based water-resistant perovskite solar cells with efficiencies exceeding 22%en_US
dc.typeArticle

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