Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/162489
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dc.contributor.authorRana, Prem Jyoti Singhen_US
dc.contributor.authorFebriansyah, Bennyen_US
dc.contributor.authorKoh, Teck Minen_US
dc.contributor.authorBening Tirta Muhammaden_US
dc.contributor.authorSalim, Teddyen_US
dc.contributor.authorHooper, Thomas J. N.en_US
dc.contributor.authorKanwat, Anilen_US
dc.contributor.authorGhosh, Biplaben_US
dc.contributor.authorKajal, Priyankaen_US
dc.contributor.authorLew, Jia Hauren_US
dc.contributor.authorAw, Yeow Chongen_US
dc.contributor.authorYantara, Nataliaen_US
dc.contributor.authorBruno, Annalisaen_US
dc.contributor.authorPullarkat, Sumod A.en_US
dc.contributor.authorAger, Joel W.en_US
dc.contributor.authorLeong, Wei Linen_US
dc.contributor.authorMhaisalkar, Subodh Gautamen_US
dc.contributor.authorMathews, Nripanen_US
dc.date.accessioned2022-10-25T05:08:21Z-
dc.date.available2022-10-25T05:08:21Z-
dc.date.issued2022-
dc.identifier.citationRana, P. J. S., Febriansyah, B., Koh, T. M., Bening Tirta Muhammad, Salim, T., Hooper, T. J. N., Kanwat, A., Ghosh, B., Kajal, P., Lew, J. H., Aw, Y. C., Yantara, N., Bruno, A., Pullarkat, S. A., Ager, J. W., Leong, W. L., Mhaisalkar, S. G. & Mathews, N. (2022). Alkali additives enable efficient large area (>55 cm²) slot-die coated perovskite solar modules. Advanced Functional Materials, 32(22), 2113026-. https://dx.doi.org/10.1002/adfm.202113026en_US
dc.identifier.issn1616-301Xen_US
dc.identifier.urihttps://hdl.handle.net/10356/162489-
dc.description.abstractTypical fabrication methods for laboratory-scale (<1 cm2) perovskite solar cells (PSCs) are undeniably not scalable and the control of crystallization of large-area perovskite layer for commercial sized modules is also particularly challenging. Here, a seed-assisted crystallization approach is demonstrated through addition of alkali salts, CsPbBr3 and KPb2Br5, to the perovskite precursor ink for enabling homogeneous and highly crystalline large-area Cs0.15FA0.85Pb(I0.83Br0.17)3 (CsFA) perovskite films via scalable slot-die coating technique. X-ray photoelectron spectroscopy analysis reveals the segregation of potassium ions at SnO2/perovskite interface which serve as nucleation sites for the crystallization of perovskite layer. The uniformly slot-die coated CsFA films (100 cm2) from the additives containing precursor inks possess larger grains with enhanced optoelectronic properties and the corresponding devices display higher reproducibility and consistency. A champion device efficiency of 18.94% under 1 sun illumination for slot-die coated PSCs in n-type/intrinsic/p-type structure is demonstrated with improved stability with 82% of its initial efficiency tested at 65 °C for 1150 h. The slot-die coated methylammonium-free perovskite module with an active area of 57.5 cm2 shows an efficiency of 16.22% and retains 82% of its initial efficiency after 4800 h under 30% relative humidity without encapsulation.en_US
dc.description.sponsorshipMinistry of Education (MOE)en_US
dc.description.sponsorshipNational Research Foundation (NRF)en_US
dc.language.isoenen_US
dc.relationNRF2018-ITC001-001en_US
dc.relationSolar CRP:S18-1176-SCRPen_US
dc.relationNRF-CRP14-2014-03en_US
dc.relationMOE2019-T2-2-097en_US
dc.relation.ispartofAdvanced Functional Materialsen_US
dc.rights© 2022 Wiley-VCH GmbH. All rights reserved.en_US
dc.subjectEngineering::Materialsen_US
dc.titleAlkali additives enable efficient large area (>55 cm²) slot-die coated perovskite solar modulesen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.contributor.schoolInterdisciplinary Graduate School (IGS)en_US
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen_US
dc.contributor.researchEnergy Research Institute @ NTU (ERI@N)en_US
dc.contributor.researchCentre of High Field Nuclear Magnetic Resonance (NMR) Spectroscopy and Imaging, NTUen_US
dc.identifier.doi10.1002/adfm.202113026-
dc.identifier.scopus2-s2.0-85124765544-
dc.identifier.issue22en_US
dc.identifier.volume32en_US
dc.identifier.spage2113026en_US
dc.subject.keywordsAlkali Additiveen_US
dc.subject.keywordsPerovskiteen_US
dc.description.acknowledgementThe authors would like to acknowledge funding from the Singapore National Research Foundation through the Intra-CREATE Collaborative Grant (NRF2018-ITC001-001), Solar CRP:S18-1176-SCRP, Competitive Research Program (NRF-CRP14-2014-03), and MOE Tier 2 project MOE2019-T2-2-097.en_US
item.fulltextNo Fulltext-
item.grantfulltextnone-
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