IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v9y2018i1d10.1038_s41467-018-02978-7.html
   My bibliography  Save this article

Efficient green light-emitting diodes based on quasi-two-dimensional composition and phase engineered perovskite with surface passivation

Author

Listed:
  • Xiaolei Yang

    (Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences
    Beijing University of Technology)

  • Xingwang Zhang

    (Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Jinxiang Deng

    (Beijing University of Technology)

  • Zema Chu

    (Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences)

  • Qi Jiang

    (Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Junhua Meng

    (Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Pengyang Wang

    (Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Liuqi Zhang

    (Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Zhigang Yin

    (Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Jingbi You

    (Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

Abstract

Perovskite light-emitting diodes (LEDs) are attracting great attention due to their efficient and narrow emission. Quasi-two-dimensional perovskites with Ruddlesden–Popper-type layered structures can enlarge exciton binding energy and confine charge carriers and are considered good candidate materials for efficient LEDs. However, these materials usually contain a mixture of phases and the phase impurity could cause low emission efficiency. In addition, converting three-dimensional into quasi-two-dimensional perovskite introduces more defects on the surface or at the grain boundaries due to the reduction of crystal sizes. Both factors limit the emission efficiency of LEDs. Here, firstly, through composition and phase engineering, optimal quasi-two-dimensional perovskites are selected. Secondly, surface passivation is carried out by coating organic small molecule trioctylphosphine oxide on the perovskite thin film surface. Accordingly, green LEDs based on quasi-two-dimensional perovskite reach a current efficiency of 62.4 cd A−1 and external quantum efficiency of 14.36%.

Suggested Citation

  • Xiaolei Yang & Xingwang Zhang & Jinxiang Deng & Zema Chu & Qi Jiang & Junhua Meng & Pengyang Wang & Liuqi Zhang & Zhigang Yin & Jingbi You, 2018. "Efficient green light-emitting diodes based on quasi-two-dimensional composition and phase engineered perovskite with surface passivation," Nature Communications, Nature, vol. 9(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-02978-7
    DOI: 10.1038/s41467-018-02978-7
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-018-02978-7
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-018-02978-7?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. Rui Zhou & Laizhi Sui & Xinbao Liu & Kaikai Liu & Dengyang Guo & Wenbo Zhao & Shiyu Song & Chaofan Lv & Shu Chen & Tianci Jiang & Zhe Cheng & Sheng Meng & Chongxin Shan, 2023. "Multiphoton excited singlet/triplet mixed self-trapped exciton emission," Nature Communications, Nature, vol. 14(1), pages 1-13, December.
    2. Jong Hyun Park & Chung Hyeon Jang & Eui Dae Jung & Seungjin Lee & Myoung Hoon Song & Bo Ram Lee, 2020. "A-Site Cation Engineering for Efficient Blue-Emissive Perovskite Light-Emitting Diodes," Energies, MDPI, vol. 13(24), pages 1-8, 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:9:y:2018:i:1:d:10.1038_s41467-018-02978-7. 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.