Study of thin-film silicon solar cells at irradiances above ten thousand suns

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Citation (Scopus)

    Abstract

    We used a tightly focused Gaussian beam of a HeNe laser to study accelerated light-induced degradation (Staebler-Wronski effect) and high photocarrier generation rates in amorphous and microcrystalline silicon thin-film solar cells, at up to13 MW/m(2) irradiance. For the experiments, the spot radius was varied from a minimum of 8.6 mu m in the focus to around 1 mm away from the focus. According to COMSOL (R) simulations, even at these high power densities heat diffusion into a glass substrate aided by spreading conduction via the Ag back-contact restricts the temperature rise to less than 14 K. Short-circuit current can be measured directly over a range of irradiances, and the J-V characteristic may be estimated by taking into account shunting by the inactive part of the cell.

    Original languageEnglish
    Title of host publication16 Iscmp: Progress in Solid State and Molecular Electronics, Ionics and Photonics
    EditorsD DimovaMalinovska, D Nesheva, AG Petrov, MT Primatarowa
    Place of PublicationBristol
    PublisherIOP Publishing Ltd.
    Pages-
    Number of pages6
    ISBN (Print)*****************
    DOIs
    Publication statusPublished - 2010
    Event16th International School on Condensed Matter Physics Meeting - Varna, Bulgaria
    Duration: 29 Aug 20103 Sep 2010

    Conference

    Conference16th International School on Condensed Matter Physics Meeting
    Abbreviated title16 ISCMP
    CountryBulgaria
    CityVarna
    Period29/08/103/09/10

    Keywords

    • HYDROGENATED AMORPHOUS-SILICON
    • TEMPERATURE
    • DEPENDENCE
    • INTENSITY

    Cite this

    Lu, Y., Abdolvand, A., & Reynolds, S. (2010). Study of thin-film silicon solar cells at irradiances above ten thousand suns. In D. DimovaMalinovska, D. Nesheva, AG. Petrov, & MT. Primatarowa (Eds.), 16 Iscmp: Progress in Solid State and Molecular Electronics, Ionics and Photonics (pp. -). IOP Publishing Ltd.. https://doi.org/10.1088/1742-6596/253/1/012042