Degraded efficiency of blue phosphorescent organic light-emitting diode through aging in ambient condition

  • Sungkyu Lee
  • , Ho Won Lee
  • , Inyeob Na
  • , Song Eun Lee
  • , Jae Woo Lee
  • , Han Kyu Yoo
  • , Kyo Min Hwang
  • , Gyu Tae Kim*
  • , Jaehoon Park
  • , Young Kwan Kim
  • *Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We demonstrated the influence of the air on blue phosphorescent organic light-emitting diodes by exposing the position of organic layers for various ambient exposure times to construct the disordered organic-organic interface in this work. To compare the effects of each hole and electron transporting path, organic layers were exposed according to the exciton blocking layer and emitting layer. Then we analyzed electrical and morphological properties using current-voltage-luminance measurement as well as other electrical and chemical analysis, such as impedance spectroscopy and X-ray photoelectron spectroscopy.

    Original languageEnglish
    Pages (from-to)10319-10324
    Number of pages6
    JournalJournal of Nanoscience and Nanotechnology
    Volume16
    Issue number10
    DOIs
    Publication statusPublished - 2016 Oct

    Bibliographical note

    Funding Information:
    This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (No. 2015R1A6A1A03031833), the MSIP (Ministry of Science, ICT and Future Planning), Korea, under the ITRC (Information Technology Research Center) support program (IITC-2015-H8501-15-1009) supervised by the IITP (Institute for Information and communications Technology Promotion).

    Publisher Copyright:
    Copyright © 2016 American Scientific Publishers All rights reserved.

    Keywords

    • Ambient exposure
    • Blue phosphorescent organic light-emitting diode
    • Degradation
    • Organic-organic interface

    ASJC Scopus subject areas

    • Bioengineering
    • General Chemistry
    • Biomedical Engineering
    • General Materials Science
    • Condensed Matter Physics

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