Stabilization of highly efficient and stable phase-pure FAPbI(3)perovskite solar cells by molecularly tailored 2D-overlayers

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dc.authorid0000-0001-9852-7246en_US
dc.contributor.authorLiu, Yuhang
dc.contributor.authorAkın, Seçkin
dc.contributor.authorHinderhofer, Alexander
dc.contributor.authorEickemeyer, Felix T.
dc.contributor.authorZhu, Hongwei
dc.contributor.authorSeo, Ji-Youn
dc.date.accessioned2020-07-14T11:32:06Z
dc.date.available2020-07-14T11:32:06Z
dc.date.issued2020en_US
dc.departmentKMÜ, Mühendislik Fakültesi, Metalurji ve Malzeme Mühendisliği Bölümüen_US
dc.descriptionWOS:000541488400001 PubMed ID: 32400061en_US
dc.description.abstractAs a result of their attractive optoelectronic properties, metal halide APbI(3)perovskites employing formamidinium (FA(+)) as the A cation are the focus of research. The superior chemical and thermal stability of FA(+)cations makes alpha-FAPbI(3)more suitable for solar-cell applications than methylammonium lead iodide (MAPbI(3)). However, its spontaneous conversion into the yellow non-perovskite phase (delta-FAPbI(3)) under ambient conditions poses a serious challenge for practical applications. Herein, we report on the stabilization of the desired alpha-FAPbI(3)perovskite phase by protecting it with a two-dimensional (2D) IBA(2)FAPb(2)I(7)(IBA=iso-butylammonium overlayer, formed via stepwise annealing. The alpha-FAPbI(3)/IBA(2)FAPb(2)I(7)based perovskite solar cell (PSC) reached a high power conversion efficiency (PCE) of close to 23 %. In addition, it showed excellent operational stability, retaining around 85 % of its initial efficiency under severe combined heat and light stress, that is, simultaneous exposure with maximum power tracking to full simulated sunlight at 80 degrees C over 500 h.en_US
dc.identifier.citationLiu, Y., Akın, S., Hinderhofer, A., Eickemeyer, F. T., Zhu, H., Seo, J. Y., Zhang, J., ... Grätzel, M. ( 2020). Stabilization of Highly Efficient and Stable Phase‐Pure FAPbI 3 Perovskite Solar Cells by Molecularly Tailored 2D‐Overlayers. Angewandte Chemie.en_US
dc.identifier.doi10.1002/anie.202005211
dc.identifier.issn1433-7851
dc.identifier.issn1521-3773
dc.identifier.pmid32400061
dc.identifier.scopus2-s2.0-85087174458
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1002/anie.202005211
dc.identifier.urihttps://hdl.handle.net/11492/3581
dc.identifier.wosWOS:000541488400001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Sceince
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.institutionauthorAkın, Seçkin
dc.language.isoen
dc.publisherWileyen_US
dc.relation.journalAngewandte Chemie International Editionen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAdditive Engineeringen_US
dc.subjectFapbı(3)en_US
dc.subjectPerovskite Solar Cellsen_US
dc.subjectThermal Stabilityen_US
dc.titleStabilization of highly efficient and stable phase-pure FAPbI(3)perovskite solar cells by molecularly tailored 2D-overlayersen_US
dc.typeArticle

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