A pyrene-phenanthroimidazole derivative for non-doped blue organic light-emitting devices

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

43 Scopus Citations
View graph of relations

Author(s)

  • Ying Zhang
  • Tsz-Wai Ng
  • Feng Lu
  • Qing-Xiao Tong
  • Shiu-Lun Lai
  • Mei-Yee Chan

Detail(s)

Original languageEnglish
Pages (from-to)190-194
Journal / PublicationDyes and Pigments
Volume98
Issue number2
Publication statusPublished - Aug 2013

Abstract

We report a newly synthesized blue fluorescent pyrene-phenanthroimidazole based emitter Py-BPI and its applications in non-doped organic light-emitting devices (OLEDs). Py-BPI has a high fluorescence quantum yield of 40% and good thermal stability with a high glass transition temperature of 137 °C. Based on Py-BPI, OLEDs with several configurations have been fabricated. Among these devices, an OLED with only two organic layers of Py-BPI and BPhen demonstrates blue emission with high efficiencies of 3.93 cd/A and 3.2 lm/W and maintains a high efficiency of 3.83 cd/A even at a brightness of 5000 cd/m2. Combining with its hole-transporting ability, Py-BPI is shown to be a versatile blue emitter especially suitable for high brightness applications. © 2013 Elsevier B.V. All rights reserved.

Research Area(s)

  • Blue emitter, Dual function, Hole transporter, Non-doped, OLED, Pyrene-based

Citation Format(s)

A pyrene-phenanthroimidazole derivative for non-doped blue organic light-emitting devices. / Zhang, Ying; Ng, Tsz-Wai; Lu, Feng et al.
In: Dyes and Pigments, Vol. 98, No. 2, 08.2013, p. 190-194.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review