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Enhanced Photovoltaic Performance of FASnI3‑Based Perovskite Solar Cells with Hydrazinium Chloride Coadditive
journal contribution
posted on 2018-06-11, 00:00 authored by Md. Emrul Kayesh, Towhid H. Chowdhury, Kiyoto Matsuishi, Ryuji Kaneko, Said Kazaoui, Jae-Joon Lee, Takeshi Noda, Ashraful IslamFor
the fabrication of efficient Sn-based perovskite solar cells
(PSCs), deposition of uniform and pinhole-free perovskite films with
low Sn4+ content remains a crucial factor. In this work,
we present a coadditive engineering process by introduction of hydrazinium
chloride (N2H5Cl) in a single precursor solvent
system to fabricate FASnI3 perovskite films. The successful
integration of N2H5Cl results in reduced concentration
of Sn4+ content by 20% in the FASnI3 film leading
to suppressed carrier recombination and pinhole-free uniform coverage.
These remarkable improvements in the FASnI3 film results
in power conversion efficiency (PCE) of Sn-based PSC up to 5.4% due
to a significant increase in open-circuit voltage. Moreover, the best
PSC without encapsulation showed stable shelf life up to 1000 h while
retaining 65% of its initial PCE.
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shelf lifeFASnI 3 filmSn-based PSCPCE1000 hcontenthydrazinium chlorideopen-circuit voltageN 2 H 5 Cl resultscoadditive engineering processN 2 H 5 Clpinhole-free uniform coveragePerovskite Solar Cellscarrier recombinationEnhanced Photovoltaic Performancepinhole-free perovskite filmsFASnI 3 perovskite filmsHydrazinium Chloride CoadditiveSn-based perovskitepower conversion efficiencyFASnI 3 film results
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