IDEAS home Printed from https://ideas.repec.org/a/nat/natene/v7y2022i10d10.1038_s41560-022-01132-4.html
   My bibliography  Save this article

Elemental de-mixing-induced epitaxial kesterite/CdS interface enabling 13%-efficiency kesterite solar cells

Author

Listed:
  • Yuancai Gong

    (Nanjing University of Posts & Telecommunications)

  • Qiang Zhu

    (Nanjing University of Posts & Telecommunications)

  • Bingyan Li

    (Nanjing University of Posts & Telecommunications)

  • Shanshan Wang

    (Fudan University)

  • Biwen Duan

    (Chinese Academy of Sciences (CAS))

  • Licheng Lou

    (Chinese Academy of Sciences (CAS))

  • Chunxu Xiang

    (Nanjing University of Posts & Telecommunications)

  • Erin Jedlicka

    (University of Washington)

  • Rajiv Giridharagopal

    (University of Washington)

  • Yage Zhou

    (Nanjing University of Posts & Telecommunications)

  • Qi Dai

    (Nanjing University of Posts & Telecommunications)

  • Weibo Yan

    (Nanjing University of Posts & Telecommunications)

  • Shiyou Chen

    (Fudan University)

  • Qingbo Meng

    (Chinese Academy of Sciences (CAS))

  • Hao Xin

    (Nanjing University of Posts & Telecommunications)

Abstract

The conversion efficiency of kesterite solar cells has been stagnated at 12.6% since 2013. In contrast to chalcopyrite solar cells, the performance of kesterite solar cells is seriously limited by heterojunction interface recombination. Here we demonstrate kesterite/CdS heterojunction is constructed on a Zn-poor surface due to the dissolution of Zn2+ during chemical bath deposition. The occupation of Cd2+ on the Zn site and re-deposition of Zn2+ into CdS creates a defective and lattice-mismatched interface. Low-temperature annealing of the kesterite/CdS junction drives migration of Cd2+ from absorber back to CdS and Zn2+ from absorber bulk to surface, achieving a gradient composition and reconstructing an epitaxial interface. This greatly reduces interface recombination and improves device open-circuit voltage and fill factor. We achieve certified 12.96% efficiency small-area (0.11 cm2) and certified 11.7% efficiency large-area (1.1 cm2) kesterite devices. The findings are expected to advance the development of kesterite solar cells.

Suggested Citation

  • Yuancai Gong & Qiang Zhu & Bingyan Li & Shanshan Wang & Biwen Duan & Licheng Lou & Chunxu Xiang & Erin Jedlicka & Rajiv Giridharagopal & Yage Zhou & Qi Dai & Weibo Yan & Shiyou Chen & Qingbo Meng & Ha, 2022. "Elemental de-mixing-induced epitaxial kesterite/CdS interface enabling 13%-efficiency kesterite solar cells," Nature Energy, Nature, vol. 7(10), pages 966-977, October.
    • Handle: RePEc:nat:natene:v:7:y:2022:i:10:d:10.1038_s41560-022-01132-4
    DOI: 10.1038/s41560-022-01132-4
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41560-022-01132-4
    File Function: Abstract
    Download Restriction: Access to the full text of the articles in this series is restricted.
    File URL: https://libkey.io/10.1038/s41560-022-01132-4?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Citations

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


    Cited by:

    1. Deng-Bing Li & Sandip S. Bista & Rasha A. Awni & Sabin Neupane & Abasi Abudulimu & Xiaoming Wang & Kamala K. Subedi & Manoj K. Jamarkattel & Adam B. Phillips & Michael J. Heben & Jonathan D. Poplawsky, 2022. "20%-efficient polycrystalline Cd(Se,Te) thin-film solar cells with compositional gradient near the front junction," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    2. Jinlin Wang & Jiangjian Shi & Kang Yin & Fanqi Meng & Shanshan Wang & Licheng Lou & Jiazheng Zhou & Xiao Xu & Huijue Wu & Yanhong Luo & Dongmei Li & Shiyou Chen & Qingbo Meng, 2024. "Pd(II)/Pd(IV) redox shuttle to suppress vacancy defects at grain boundaries for efficient kesterite solar cells," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

    More about this item

    Statistics

    Access and download statistics

    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:nat:natene:v:7:y:2022:i:10:d:10.1038_s41560-022-01132-4. 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: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.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.