XRD total scattering of the CZTS nanoparticle absorber layer for the thin film solar cells

Joanna Symonowicz, Kirsten M. Ø. Jensen, Sara Lena Josefin Engberg, Stela Canulescu

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    Cu2ZnSnS4 (CZTS) thin film solar cells are cheap, non-toxic and present an efficiency up to 9,2% [1]. They can be easily manufactured by the deposition of the nanoparticle ink as a thin film followed by a thermal treatment to obtain large grains [2]. Therefore, CZTS has the potential to revolutionize the solar energy market.
    However, to commercialize CZTS nanoparticle thin films, the efficiency issues must yet be resolved. In order to do so, it is vital to understand in detail their nanoscale atomic structure. CZTS crystallize in the kesterite structure, where Cu and Zn is distributed between the cation sites in the structure. The cation distribution affects the properties of the CZTS nanoparticles. Here, we use the hot-injection synthesis method to prepare CZTS nanoparticles of different compositions. Information on the atomic structure is obtained by combining Rietveld refinement of Powder X-ray Diffraction data with X-ray total scattering with Pair Distribution Function analysis. Powder neutron diffraction will furthermore allow characterization of the cation disorder on the metal sites in the kesterite structure. The nanoparticle ink is also characterized by XRD, EDS, and Raman spectroscopy in order to fully detect possible secondary phases and characterize the CZTS phase.
    Original languageEnglish
    Publication date2017
    Number of pages1
    Publication statusPublished - 2017
    EventDANSCATT Annual meeting 2017 - University of Southern Denmark, Odense, Denmark
    Duration: 1 Jun 20172 Jun 2017


    ConferenceDANSCATT Annual meeting 2017
    LocationUniversity of Southern Denmark
    Internet address


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