Comparison of potassium-functionalized Cu2ZnSnS4 nanoparticles annealed in different reactive sulfide atmospheres

Sara Lena Josefin Engberg, Stela Canulescu, Niels Christian Schjodt, Jørgen Schou

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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    Abstract

    Kesterite Cu2 ZnSnS4 (CZTS) can be a promising, alternative material for thin-film solar cells, because it is earth-abundant, non-toxic and displays relevant physical properties. For future up-scaling possibilities and to decrease the environmental impact of the photovoltaic technology, solution-processing deposition methods are desired. This paper deals with CZTS absorber layers fabricated from CZTS nanoparticles that are functionalized with KCl, and investigates two different types of furnaces for the annealing process; a hydrogen sulfide (H2S) flow furnace and a nitrogen atmosphere closed furnace. We find that more uniform grain growth is achieved when annealing in a closed furnace, while very large grains on the surface of the film are obtained when annealing in H2S.
    Original languageEnglish
    Title of host publicationProceedings of the 7th World Conference on Photovoltaic Energy Conversion
    PublisherIEEE
    Publication date2018
    Pages0124-0126
    DOIs
    Publication statusPublished - 2018
    Event7th World Conference on Photovoltaic Energy Conversion - Hilton Waikoloa Village Resort, Waikoloa, United States
    Duration: 10 Jun 201815 Jun 2018
    Conference number: WCPEC-7

    Conference

    Conference7th World Conference on Photovoltaic Energy Conversion
    NumberWCPEC-7
    LocationHilton Waikoloa Village Resort
    Country/TerritoryUnited States
    CityWaikoloa
    Period10/06/201815/06/2018

    Keywords

    • Cu2ZnSnS4
    • Nanoparticles
    • Annealing
    • Grain growth

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