IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v6y2015i1d10.1038_ncomms10085.html
   My bibliography  Save this article

High-efficiency polymer solar cells with small photon energy loss

Author

Listed:
  • Kazuaki Kawashima

    (Graduate School of Engineering, Hiroshima University
    RIKEN Center for Emergent Matter Science (CEMS))

  • Yasunari Tamai

    (Graduate School of Engineering, Kyoto University, Katsura)

  • Hideo Ohkita

    (Graduate School of Engineering, Kyoto University, Katsura
    Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency)

  • Itaru Osaka

    (RIKEN Center for Emergent Matter Science (CEMS)
    Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency)

  • Kazuo Takimiya

    (Graduate School of Engineering, Hiroshima University
    RIKEN Center for Emergent Matter Science (CEMS))

Abstract

A crucial issue facing polymer-based solar cells is how to manage the energetics of the polymer/fullerene blends to maximize short-circuit current density and open-circuit voltage at the same time and thus the power conversion efficiency. Here we demonstrate that the use of a naphthobisoxadiazole-based polymer with a narrow bandgap of 1.52 eV leads to high open-circuit voltages of approximately 1 V and high-power conversion efficiencies of ∼9% in solar cells, resulting in photon energy loss as small as ∼0.5 eV, which is much smaller than that of typical polymer systems (0.7–1.0 eV). This is ascribed to the high external quantum efficiency for the systems with a very small energy offset for charge separation. These unconventional features of the present polymer system will inspire the field of polymer-based solar cells towards further improvement of power conversion efficiencies with both high short-circuit current density and open-circuit voltage.

Suggested Citation

  • Kazuaki Kawashima & Yasunari Tamai & Hideo Ohkita & Itaru Osaka & Kazuo Takimiya, 2015. "High-efficiency polymer solar cells with small photon energy loss," Nature Communications, Nature, vol. 6(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms10085
    DOI: 10.1038/ncomms10085
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/ncomms10085
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/ncomms10085?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
    ---><---

    Citations

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


    Cited by:

    1. Anna Jungbluth & Eunkyung Cho & Alberto Privitera & Kaila M. Yallum & Pascal Kaienburg & Andreas E. Lauritzen & Thomas Derrien & Sameer V. Kesava & Irfan Habib & Saied Md Pratik & Natalie Banerji & Je, 2024. "Limiting factors for charge generation in low-offset fullerene-based organic solar cells," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    2. Xing, Xueli & Xin, Yu & Sun, Fan & Qu, Wanjun & Hong, Hui & Jin, Hongguang, 2021. "Test of a spectral splitting prototype hybridizing photovoltaic and solar syngas power generation," Applied Energy, Elsevier, vol. 304(C).

    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:natcom:v:6:y:2015:i:1:d:10.1038_ncomms10085. 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.