Impact of Interface Recombination on Time Resolved Photoluminescence (TRPL) Decays in CdTe Solar Cells (Numerical Simulation Analysis): Preprint

    Research output: Contribution to conferencePaper

    Abstract

    Using Sentaurus Device Software, we analyze how bulk and interface recombination affect time-resolved photoluminescence (TRPL) decays in CdTe solar cells. This modeling analysis could improve the interpretation of TRPL data and increase the possibility of rapid defect characterization in thin-film solar cells. By illuminating the samples with photons of two different wavelengths, we try to deducethe spatial origin of the dominant recombination loss. Shorter-wavelength photons will be more affected by the interface recombination and drift compared to the longer ones. Using the two-wavelength TRPL characterization method, it may be possible to determine whether a specific change in deposition process has affected the properties of interface or the bulk of the absorber.
    Original languageAmerican English
    Number of pages8
    StatePublished - 2012
    Event2012 IEEE Photovoltaic Specialists Conference - Austin, Texas
    Duration: 3 Jun 20128 Jun 2012

    Conference

    Conference2012 IEEE Photovoltaic Specialists Conference
    CityAustin, Texas
    Period3/06/128/06/12

    NREL Publication Number

    • NREL/CP-5200-54116

    Keywords

    • carrier lifetime
    • CdTe
    • interface recombination
    • numerical simulations

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