High-efficiency blue phosphorescent organic light-emitting diodes using a carbazole and carboline-based host material

Sun Jae Kim, Young Jae Kim, Young Hoon Son, Jung A. Hur, Hyun Ah Um, Jicheol Shin, Tae Wan Lee, Min Ju Cho, Jung Keun Kim, Sunghoon Joo, Joong Hwan Yang, Gee Sung Chae, Kihang Choi, Jang Hyuk Kwon, Dong Hoon Choi

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Abstract

A novel bipolar host 9-(4-(9H-pyrido[2,3-b]indol-9-yl)phenyl)-9H-3, 9′-bicarbazole (pBCb2Cz) was prepared for high efficiency blue phosphorescent organic light-emitting diodes (PhOLEDs), a high triplet energy (ET) material, employing electron-deficient α-carboline. pBCb2Cz (ET = 2.93 eV) was effective as a host material for FIrpic- and FCNIrpic-based blue PhOLEDs, and highest quantum efficiencies of 23.0 and 16.2%, respectively, were achieved.

Original languageEnglish
Pages (from-to)6788-6790
Number of pages3
JournalChemical Communications
Volume49
Issue number60
DOIs
Publication statusPublished - 2013 Aug 4

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ASJC Scopus subject areas

  • Metals and Alloys
  • Materials Chemistry
  • Surfaces, Coatings and Films
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Catalysis
  • Chemistry(all)

Cite this

Kim, S. J., Kim, Y. J., Son, Y. H., Hur, J. A., Um, H. A., Shin, J., Lee, T. W., Cho, M. J., Kim, J. K., Joo, S., Yang, J. H., Chae, G. S., Choi, K., Hyuk Kwon, J., & Choi, D. H. (2013). High-efficiency blue phosphorescent organic light-emitting diodes using a carbazole and carboline-based host material. Chemical Communications, 49(60), 6788-6790. https://doi.org/10.1039/c3cc42569j