Optimizing quality of lead-free perovskite thin film with anti-solvent engineering and co-doping SnBr2/SnF2; its solar cell performance

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dc.contributor.authorBaltakesmez, Ali
dc.contributor.authorGuezeldir, Betuel
dc.contributor.authorAlkan, Yunus
dc.contributor.authorSaglam, Mustafa
dc.contributor.authorBiber, Mehmet
dc.date.accessioned2024-02-23T14:13:21Z
dc.date.available2024-02-23T14:13:21Z
dc.date.issued2020
dc.departmentNEÜen_US
dc.description.abstractLead-free perovskite film is crucial for non-toxicity device applications and tin-based perovskite is one of most promising non-toxic perovskites. In this study, Br and F doping and anti-solvent washing process were investigated for suitable MASnI3 perovskite film. The structural, morphological and optical analyses showed the only Br or F doping is not enough to obtain of tin-based perovskite films having high crystallinity, surface coverage and absorbance properties. The Br and F co-doping (1 M(MAI):0.6 M(SnI2):0.2 M(SnBr2):0.2 M(SnF2)) has caused significantly decrease in morphological defects and increase crystallinity. Moreover, addition to the co-doping, void-free film morphology has been obtained by anti-solvent washing process: toluene:chloroform (1:1 vol%). Thus, oxidation of Sn2+ to Sn4+ was successfully suppressed. The optimized Sn-based perovskite film has band gap energy of 1.31 eV and atomic ratio determined to be 1.00:0.15:0.03 from the EDS and 1.00:0.16:0.07 from the XPS for I:Br:F, which indicates I-rich stoichiometric content. The solar cell application has been also performed in device structure of ITO/PEDOT:PSS (60 nm)/perovskite (272 nm)/PCBM (70 nm)/Al (100 nm). The best solar cells prepared using the co-doped perovskite films without and with anti-solvent washing process have PCE values of 2.25% with Jsc 14.9 mA/cm(2), Voc 0.42 V and FF 36% and 4.45% with Jsc 17.8 mA/cm(2), Voc 0.48 V and FF 52%, respectively.en_US
dc.description.sponsorshipAtaturk University Scientific Research Project Office [FBA-2019-6862]; Ataturk University Scientific Research Project Officeen_US
dc.description.sponsorshipThis study was supported by Ataturk University Scientific Research Project Office, under project number: FBA-2019-6862. The authors would like to thank Ataturk University Scientific Research Project Office for their support.en_US
dc.identifier.doi10.1016/j.optmat.2020.110524
dc.identifier.issn0925-3467
dc.identifier.issn1873-1252
dc.identifier.scopus2-s2.0-85092608649en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.optmat.2020.110524
dc.identifier.urihttps://hdl.handle.net/20.500.12452/12405
dc.identifier.volume110en_US
dc.identifier.wosWOS:000602391500003en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofOptical Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectLead-Free Perovskiteen_US
dc.subjectTin Bromideen_US
dc.subjectTin Fluoride, Anti-Solvent Engineeringen_US
dc.subjectMorphology Controlen_US
dc.subjectPerovskite Solar Cellen_US
dc.titleOptimizing quality of lead-free perovskite thin film with anti-solvent engineering and co-doping SnBr2/SnF2; its solar cell performanceen_US
dc.typeArticleen_US

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