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    Use of the Phen-NaDPO:Sn(SCN) 2 Blend as Electron Transport Layer Results to Consistent Efficiency Improvements in Organic and Hybrid Perovskite Solar Cells

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    Name:
    Adv. Funct. Mater. 2019, 1905810.pdf
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    1.824Mb
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    PDF
    Description:
    Accepted manuscript
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    Type
    Article
    Authors
    Seitkhan, Akmaral cc
    Neophytou, Marios
    Kirkus, Mindaugas cc
    Abou-Hamad, Edy
    Hedhili, Mohamed N. cc
    Yengel, Emre cc
    Firdaus, Yuliar cc
    Faber, Hendrik cc
    Lin, Yuanbao
    Tsetseris, Leonidas
    McCulloch, Iain cc
    Anthopoulos, Thomas D. cc
    KAUST Department
    Chemical Science Program
    Core LaboratoriesKing Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Kingdom of Saudi Arabia
    Imaging and Characterization Core Lab
    KAUST Solar Center (KSC)
    Material Science and Engineering Program
    NMR
    Physical Science and Engineering (PSE) Division
    Surface Science
    Date
    2019-09-26
    Embargo End Date
    2020-09-27
    Permanent link to this record
    http://hdl.handle.net/10754/658568
    
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    Abstract
    A simple approach that enables a consistent enhancement of the electron extracting properties of the widely used small-molecule Phen-NaDPO and its application in organic solar cells (OSCs) is reported. It is shown that addition of minute amounts of the inorganic molecule Sn(SCN)2 into Phen-NaDPO improves both the electron transport and its film-forming properties. Use of Phen-NaDPO:Sn(SCN)2 blend as the electron transport layer (ETL) in binary PM6:IT-4F OSCs leads to a remarkable increase in the cells' power conversion efficiency (PCE) from 12.6% (Phen-NaDPO) to 13.5% (Phen-NaDPO:Sn(SCN)2). Combining the hybrid ETL with the best-in-class organic ternary PM6:Y6:PC70BM systems results to a similarly remarkable PCE increase from 14.2% (Phen-NaDPO) to 15.6% (Phen-NaDPO:Sn(SCN)2). The consistent PCE enhancement is attributed to reduced trap-assisted carrier recombination at the bulk-heterojunction/ETL interface due to the presence of new energy states formed upon chemical interaction of Phen-NaDPO with Sn(SCN)2. The versatility of this hybrid ETL is further demonstrated with its application in perovskite solar cells for which an increase in the PCE from 16.6% to 18.2% is also demonstrated.
    Citation
    Seitkhan, A., Neophytou, M., Kirkus, M., Abou-Hamad, E., Hedhili, M. N., Yengel, E., … Anthopoulos, T. D. (2019). Use of the Phen-NaDPO:Sn(SCN) 2 Blend as Electron Transport Layer Results to Consistent Efficiency Improvements in Organic and Hybrid Perovskite Solar Cells. Advanced Functional Materials, 1905810. doi:10.1002/adfm.201905810
    Sponsors
    The authors acknowledge the King Abdullah University of Science and Technology (KAUST) for the financial support. L.T. acknowledges support for the computational time granted from GRNET in the National HPC facility–ARIS– under Project STEM-2.
    Publisher
    Wiley
    Journal
    Advanced Functional Materials
    DOI
    10.1002/adfm.201905810
    Additional Links
    https://onlinelibrary.wiley.com/doi/abs/10.1002/adfm.201905810
    ae974a485f413a2113503eed53cd6c53
    10.1002/adfm.201905810
    Scopus Count
    Collections
    Articles; Imaging and Characterization Core Lab; Physical Science and Engineering (PSE) Division; Chemical Science Program; Material Science and Engineering Program; KAUST Solar Center (KSC)

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