Moisture-resistant FAPbI(3) perovskite solar cell with 22.25 % power conversion efficiency through pentafluorobenzyl phosphonic acid passivation

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dc.authorid0000-0001-9852-7246en_US
dc.authorid0000-0002-2626-4050en_US
dc.contributor.authorAkman, Erdi
dc.contributor.authorShalan, Ahmed Esmail
dc.contributor.authorSadegh, Faranak
dc.contributor.authorAkın, Seçkin
dc.date.accessioned2021-02-04T08:36:17Z
dc.date.available2021-02-04T08:36:17Z
dc.date.issued2021en_US
dc.departmentKMÜ, Mühendislik Fakültesi, Metalurji ve Malzeme Mühendisliği Bölümüen_US
dc.descriptionWOS:000608567400001 PubMed ID: 33352009en_US
dc.description.abstractPerovskite solar cells (PSCs) have shown great promise for photovoltaic applications, owing to their low-cost assembly, exceptional performance, and low-temperature solution processing. However, the advancement of PSCs towards commercialization requires improvements in efficiency and long-term stability. The surface and grain boundaries of perovskite layer, as well as interfaces, are critical factors in determining the performance of the assembled cells. Defects, which are mainly located at perovskite surfaces, can trigger hysteresis, carrier recombination, and degradation, which diminish the power conversion efficiencies (PCEs) of the resultant cells. This study concerns the stabilization of the alpha-FAPbI(3) perovskite phase without negatively affecting the spectral features by using 2,3,4,5,6-pentafluorobenzyl phosphonic acid (PFBPA) as a passivation agent. Accordingly, high-quality PSCs are attained with an improved PCE of 22.25 % and respectable cell parameters compared to the pristine cells without the passivation layer. The thin PFBPA passivation layer effectively protects the perovskite layer from moisture, resulting in better long-term stability for unsealed PSCs, which maintain >90 % of the original efficiency under different humidity levels (40-75 %) after 600 h. PFBPA passivation is found to have a considerable impact in obtaining high-quality and stable FAPbI(3) films to benefit both the efficiency and the stability of PSCs.en_US
dc.description.sponsorshipEA and AES contributed equally to this work. AES thanks the National Research grants from MINECO "Juan de la Cierva" [FJCI-2018-037717]. AES is currently on leave from CMRDI.en_US
dc.identifier.citationAkman, E., Shalan, A. E., Sadegh, F., Akın, S.(2021). Moisture-resistant FAPbI(3) perovskite solar cell with 22.25 % power conversion efficiency through pentafluorobenzyl phosphonic acid passivation. Chemsuschem.en_US
dc.identifier.doi10.1002/cssc.202002707
dc.identifier.issn1864-5631
dc.identifier.issn1864-564X
dc.identifier.pmid33352009
dc.identifier.scopus2-s2.0-85100216154
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1002/cssc.202002707
dc.identifier.urihttps://hdl.handle.net/11492/4859
dc.identifier.wosWOS:000608567400001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Sceince
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.institutionauthorAkın, Seçkin
dc.institutionauthorAkman, Erdi
dc.language.isoen
dc.publisherWileyen_US
dc.relation.journalChemsuschemen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectPassivationen_US
dc.subjectPerovskitesen_US
dc.subjectPhosphonic Acidsen_US
dc.subjectSolar Cellsen_US
dc.subjectStabilizationen_US
dc.titleMoisture-resistant FAPbI(3) perovskite solar cell with 22.25 % power conversion efficiency through pentafluorobenzyl phosphonic acid passivationen_US
dc.typeArticle

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