• 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.

    Aluminium-Doped Zinc Oxide Rear Reflectors for High-Efficiency Silicon Heterojunction Solar Cells

    Thumbnail
    Author
    Senaud, L.-L.; Christmann, G.; Descoeudres, A.; Geissbuhler, J.; Barraud, L.; Badel, N.; Allebe, C.; Nicolay, S.; Despeisse, M.; Paviet-Salomon, B.; Ballif, C.
    Metadata
    Show full item record
    Abstract
    This contribution demonstrates an improved infrared response of the rear reflector of monofacial silicon heterojunction solar cells using aluminium-doped zinc oxide (AZO) in lieu of indium tin oxide (ITO) in the back electron-collecting shell. Along these lines, the carrier concentration and the thickness of the rear AZO layer are optimized in order to minimize the free-carrier and the plasmonic absorption losses without detrimentally affecting the selectivity and the electrical transport properties of the device. The respective reductions of free-carrier versus plasmonic absorption losses are thoroughly analyzed. Furthermore, the open-circuit voltage and series resistance of the solar cells are shown to not be impacted by the AZO thickness and the carrier concentration within the investigated ranges. As a result of these optimizations, a significant decrease in the parasitic absorption is obtained, leading to a champion device with a short-circuit current density of up to 40.81 mA/cm2 and an efficiency of 23.96%, featuring a standard screen-printed silver grid at the front with ca. 3.25% optical shadowing. In summary, AZO appears to be a promising indium-free alternative material to replace the back ITO commonly used in silicon heterojunction solar cells.
    Publication Reference
    IEEE Journal of Photovoltaics, vol. 9 (5), art. no. 8788567, pp. 1217-1224.
    Year
    2019
    URI
    https://yoda.csem.ch/handle/20.500.12839/377
    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