IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v5y2014i1d10.1038_ncomms5769.html
   My bibliography  Save this article

Phosphorescent dye-based supramolecules for high-efficiency organic light-emitting diodes

Author

Listed:
  • Kwon-Hyeon Kim

    (WCU Hybrid Materials Program, Seoul National University)

  • Sunghun Lee

    (WCU Hybrid Materials Program, Seoul National University)

  • Chang-Ki Moon

    (Seoul National University)

  • Sei-Yong Kim

    (Seoul National University)

  • Young-Seo Park

    (Seoul National University)

  • Jeong-Hwan Lee

    (WCU Hybrid Materials Program, Seoul National University)

  • Jin Woo Lee

    (Samsung Total Petrochemicals, Daesan-eup)

  • June Huh

    (Korea University)

  • Youngmin You

    (Kyung Hee University)

  • Jang-Joo Kim

    (WCU Hybrid Materials Program, Seoul National University
    Seoul National University)

Abstract

Organic light-emitting diodes (OLEDs) are among the most promising organic semiconductor devices. The recently reported external quantum efficiencies (EQEs) of 29–30% for green and blue phosphorescent OLEDs are considered to be near the limit for isotropically oriented iridium complexes. The preferred orientation of transition dipole moments has not been thoroughly considered for phosphorescent OLEDs because of the lack of an apparent driving force for a molecular arrangement in all but a few cases, even though horizontally oriented transition dipoles can result in efficiencies of over 30%. Here we use quantum chemical calculations to show that the preferred orientation of the transition dipole moments of heteroleptic iridium complexes (HICs) in OLEDs originates from the preferred direction of the HIC triplet transition dipole moments and the strong supramolecular arrangement within the co-host environment. We also demonstrate an unprecedentedly high EQE of 35.6% when using HICs with phosphorescent transition dipole moments oriented in the horizontal direction.

Suggested Citation

  • Kwon-Hyeon Kim & Sunghun Lee & Chang-Ki Moon & Sei-Yong Kim & Young-Seo Park & Jeong-Hwan Lee & Jin Woo Lee & June Huh & Youngmin You & Jang-Joo Kim, 2014. "Phosphorescent dye-based supramolecules for high-efficiency organic light-emitting diodes," Nature Communications, Nature, vol. 5(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5769
    DOI: 10.1038/ncomms5769
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/ncomms5769
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/ncomms5769?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. Sudhir Kumar & Tommaso Marcato & Frank Krumeich & Yen-Ting Li & Yu-Cheng Chiu & Chih-Jen Shih, 2022. "Anisotropic nanocrystal superlattices overcoming intrinsic light outcoupling efficiency limit in perovskite quantum dot light-emitting diodes," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    2. Ningning Tang & Jiadong Zhou & Liangxuan Wang & Matthias Stolte & Guojing Xie & Xinbo Wen & Linlin Liu & Frank Würthner & Johannes Gierschner & Zengqi Xie, 2023. "Anomalous deep-red luminescence of perylene black analogues with strong π-π interactions," Nature Communications, Nature, vol. 14(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:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5769. 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.