IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v10y2017i11p1813-d118142.html
   My bibliography  Save this article

Band Gap Tuning of Cu 2 ZnGeS x Se 4-x Absorbers for Thin-Film Solar Cells

Author

Listed:
  • Thomas Schnabel

    (Zentrum für Sonnenenergie- und Wasserstoff-Forschung Baden-Württemberg, Meitnerstraße 1, 70563 Stuttgart, Germany)

  • Mahmoud Seboui

    (Zentrum für Sonnenenergie- und Wasserstoff-Forschung Baden-Württemberg, Meitnerstraße 1, 70563 Stuttgart, Germany)

  • Erik Ahlswede

    (Zentrum für Sonnenenergie- und Wasserstoff-Forschung Baden-Württemberg, Meitnerstraße 1, 70563 Stuttgart, Germany)

Abstract

In this work, kesterite-type Cu 2 ZnGeS x Se 4-x absorbers were prepared by a two-step process for use in thin-film solar cells. Their high band gap makes them an interesting candidate as top cells in multijunction solar cells. However, an exact tuning of the band gap is essential. Therefore, for the first time, the [S]/([S] + [Se]) ratio was controlled via addition of a variable amount of GeS during the annealing step, which allowed precise control of the band gap between 1.5 and 1.7 eV. The changes in morphology and crystallinity of the absorber are discussed in detail. An additional focus was directed toward the parameters of the resulting solar cells. Although the efficiency declined as the [S]/([S] + [Se]) ratio increases, the open-circuit voltage was considerably increased.

Suggested Citation

  • Thomas Schnabel & Mahmoud Seboui & Erik Ahlswede, 2017. "Band Gap Tuning of Cu 2 ZnGeS x Se 4-x Absorbers for Thin-Film Solar Cells," Energies, MDPI, vol. 10(11), pages 1-9, November.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:11:p:1813-:d:118142
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/10/11/1813/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/10/11/1813/
    Download Restriction: no
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Saradh Prasad & Devaraj Durairaj & Mohamad Saleh AlSalhi & Jayaraman Theerthagiri & Prabhakarn Arunachalam & Govindarajan Durai, 2018. "Fabrication of Cost-Effective Dye-Sensitized Solar Cells Using Sheet-Like CoS 2 Films and Phthaloylchitosan-Based Gel-Polymer Electrolyte," Energies, MDPI, vol. 11(2), pages 1-12, January.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:10:y:2017:i:11:p:1813-:d:118142. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.