IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v8y2017i1d10.1038_s41467-017-02419-x.html
   My bibliography  Save this article

Long-lived efficient delayed fluorescence organic light-emitting diodes using n-type hosts

Author

Listed:
  • Lin-Song Cui

    (Kyushu University)

  • Shi-Bin Ruan

    (Kyushu University)

  • Fatima Bencheikh

    (Kyushu University
    Adachi Molecular Exciton Engineering Project)

  • Ryo Nagata

    (Kyushu University)

  • Lei Zhang

    (Soochow University)

  • Ko Inada

    (Kyushu University)

  • Hajime Nakanotani

    (Kyushu University
    Adachi Molecular Exciton Engineering Project
    Kyushu University)

  • Liang-Sheng Liao

    (Soochow University)

  • Chihaya Adachi

    (Kyushu University
    Adachi Molecular Exciton Engineering Project
    Kyushu University)

Abstract

Organic light-emitting diodes have become a mainstream display technology because of their desirable features. Third-generation electroluminescent devices that emit light through a mechanism called thermally activated delayed fluorescence are currently garnering much attention. However, unsatisfactory device stability is still an unresolved issue in this field. Here we demonstrate that electron-transporting n-type hosts, which typically include an acceptor moiety in their chemical structure, have the intrinsic ability to balance the charge fluxes and broaden the recombination zone in delayed fluorescence organic electroluminescent devices, while at the same time preventing the formation of high-energy excitons. The n-type hosts lengthen the lifetimes of green and blue delayed fluorescence devices by > 30 and 1000 times, respectively. Our results indicate that n-type hosts are suitable to realize stable delayed fluorescence organic electroluminescent devices.

Suggested Citation

  • Lin-Song Cui & Shi-Bin Ruan & Fatima Bencheikh & Ryo Nagata & Lei Zhang & Ko Inada & Hajime Nakanotani & Liang-Sheng Liao & Chihaya Adachi, 2017. "Long-lived efficient delayed fluorescence organic light-emitting diodes using n-type hosts," Nature Communications, Nature, vol. 8(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-02419-x
    DOI: 10.1038/s41467-017-02419-x
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-017-02419-x
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-017-02419-x?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
    ---><---

    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:8:y:2017:i:1:d:10.1038_s41467-017-02419-x. 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.