• Login
    View Item 
    •   YODA Home
    • CSEM Archive
    • Research Publications
    • View Item
    •   YODA Home
    • CSEM Archive
    • Research Publications
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Robust Electron Transport Layers via In Situ Cross-Linking of Perylene Diimide and Fullerene for Perovskite Solar Cells

    Thumbnail
    Author
    Yum, J. H.; Moon, S. J.; Yao, L.; Caretti, M.; Nicolay, S.; Kim, D. H.; et al.
    Metadata
    Show full item record
    Abstract
    While employing charge transport layers (CTLs) in optoelectronic devices including hybrid perovskite solar cells is essential for high performance, using solution-processed organic semiconductor-based CTLs poses challenges for device fabrication. Cross-linking the organic semiconductor is a viable approach, but cross-linked CTLs require additional development for practical application. Here a facile in situ strategy to prepare a cross-linked electron transport layer (ETL) is demonstrated by employing a semiconducting cross-linker composed of perylenediimidediazide, together with the fullerene (C-60) derivative coded as PCBM. Varying the PCBM ratio the cross-linking conditions affords a tunable ETL that exhibits solvent tolerance, suitable electron mobility (>10(-4) cm(2) V-1 s(-1)), and hydrophobicity at cross-linking temperatures as low as 120 degrees C. In both the n-i-p structure and the p-i-n perovskite solar cells employing our ETL, stable power generation and hysteresis-free performance are achieved. Optimized p-i-n devices with our cross-linked ETL gave power conversion efficiency of over 12% (active area of 1.07 cm(2)). These results suggest that robust n-type semiconducting films obtained with our cross-linking method are promising as ETLs in practical optoelectronic applications.
    Publication Reference
    Acs Applied Energy Materials, vol. 2 (9), pp. 6616-6623, Sep 2019.
    Year
    2019
    URI
    https://yoda.csem.ch/handle/20.500.12839/362
    Collections
    • Research Publications

    Browse

    All of YODACommunities & CollectionsBy Issue DateAuthorsTitlesResearch AreasBusiness UnitsThis CollectionBy Issue DateAuthorsTitlesResearch AreasBusiness Units

    My Account

    Login

    DSpace software copyright © 2002-2022  DuraSpace
    Contact Us | Send Feedback
    DSpace Express is a service operated by 
    Atmire NV