Comparative Study of the Defect Point Physics and Luminescence of the Kesterites Cu2ZnSnS4 and Cu2ZnSnSe4 and Chalcopyrite Cu(In,Ga)Se2: Preprint

    Research output: Contribution to conferencePaper

    Abstract

    In this contribution, we present a comparative study of the luminescence of the kesterites Cu2ZnSnS4 (CZTS) and Cu2ZnSnSe4 (CZTSe) and their related chalcopyrite Cu(In,Ga)Se2 (CIGSe). Luminescence spectroscopy suggests that the electronic properties of Zn-rich, Cu-poor kesterites (both CZTS and CZTSe) and Cu-poor CIGSe are dictated by fluctuations of the electrostatic and chemical potentials. Thelarge redshift in the luminescence of grain boundaries in CIGSe, associated with the formation of a neutral barrier is clearly observed in CZTSe, and, to some extent, in CZTS. Kesterites can therefore replicate the fundamental electronic properties of CIGSe.
    Original languageAmerican English
    Number of pages7
    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-5200-54140

    Keywords

    • cathodoluminescence (CL) spectroscopy
    • chalcopyrites
    • kesterite
    • thin films

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