Power output stabilizing feature in perovskite solar cells at operating condition: Selective contact-dependent charge recombination dynamics

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dc.authorid0000-0001-9852-7246en_US
dc.contributor.authorKim, Hui-Seon
dc.contributor.authorSeo, Ji-Youn
dc.contributor.authorAkın, Seçkin
dc.contributor.authorSimon, Elfriede
dc.contributor.authorFleischer, Maximilian
dc.contributor.authorZakeeruddin, Shaik M.
dc.contributor.authorGratzel, Michael
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:000471201800016en_US
dc.description.abstractStabilized power output at maximum power point (mpp) has been considered as one of the most reliable parameters as it provides a key performance indicator for perovskite solar cells (PSCs) revealing the operational stability of the photovoltaic device. Here, we show the effect of selective contact on the power output change under mpp tracking, which closely correlates with the charge recombination dynamics with a time scale of minutes. The normal n-i-p cell architecture comprising cp-TiO2/mp-TiO2/perovskite/spiro-MeOTAD (doped by either Li-TFSI or Zn-TFSI2) and the inverted p-i-n structure, NiOx/perovskite/PCBM, are examined to investigate the specific effect of the nature of the interface on operational stability. The normal structure with Li-TFSI shows a gradual performance decrease at mpp owing to the enhanced recombination at the interface between the perovskite and the spiro-MeOTAD, becoming the dominant recombination process, although the bulk-related recombination is suppressed. On the other hand, the inverted structure demonstrates an improved photocurrent at mpp due to the effectively suppressed recombination both in bulk and at the interface. Remarkably, the deteriorating performance of the normal structure with Li-TFSI at mpp is successfully avoided by replacing Li-TFSI with Zn-TFSI2, leading even to an increased power output with stable performance at mpp.en_US
dc.description.sponsorshipEuropean Union's Horizon 2020 research and innovation programme [785219]; King Abdulaziz City for Science and Technology; TUBITAKTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [2214]en_US
dc.description.sponsorshipThis project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No 785219. M.G., S.M.Z gratefully acknowledges King Abdulaziz City for Science and Technology for the financial support. S.A. would like to thank TUBITAK - 2214-A International Doctoral Research Fellowship Programme, for supporting his research at EPFL.en_US
dc.identifier.citationKim, H.-S., Seo, J.-Y., Akın, S., Simon, E., Fleischer, M., Zakeeruddin, S. M. (2019). Power output stabilizing feature in perovskite solar cells at operating condition: Selective contact-dependent charge recombination dynamics. Nano Energy, 61, 126-131.
dc.identifier.doi10.1016/j.nanoen.2019.04.051
dc.identifier.endpage131en_US
dc.identifier.issn2211-2855
dc.identifier.issn2211-3282
dc.identifier.scopus2-s2.0-85067977456
dc.identifier.scopusqualityQ1
dc.identifier.startpage126en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.nanoen.2019.04.051
dc.identifier.urihttps://hdl.handle.net/11492/2425
dc.identifier.volume61en_US
dc.identifier.wosWOS:000471201800016
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Sceince
dc.indekslendigikaynakScopus
dc.institutionauthorAkın, Seçkin
dc.language.isoen
dc.publisherElsevier Science Bven_US
dc.relation.journalNano Energyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectPerovskiteen_US
dc.subjectMaximum Power Pointen_US
dc.subjectSelective Contacten_US
dc.subjectRecombinationen_US
dc.subjectStabilizing Featureen_US
dc.titlePower output stabilizing feature in perovskite solar cells at operating condition: Selective contact-dependent charge recombination dynamicsen_US
dc.typeArticle

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