Low Driving Voltage, High Quantum Efficiency, High Power Efficiency, and Little Efficiency Roll-Off in Red, Green, and Deep-Blue Phosphorescent Organic Light-Emitting Diodes Using a High-Triplet-Energy Hole Transport Material

Authors

  • Yong Joo Cho,

    1. Department of Polymer Science and Engineering, Dankook University 126, Jukjeon-dong, Suji-gu, Yongin, Gyeonggi, 448-701, Korea
    Search for more papers by this author
  • Jun Yeob Lee

    Corresponding author
    1. Department of Polymer Science and Engineering, Dankook University 126, Jukjeon-dong, Suji-gu, Yongin, Gyeonggi, 448-701, Korea
    • Department of Polymer Science and Engineering, Dankook University 126, Jukjeon-dong, Suji-gu, Yongin, Gyeonggi, 448-701, Korea.

    Search for more papers by this author

Abstract

original image

Improved device performance in red, green, and deep-blue phosphorescent organic light-emitting diodes is achieved using a new high-triplet-energy hole transport material. The driving voltage is lowered and the power efficiency is improved by more than 70% using the new hole transport material.

Ancillary