A new blue-emitting benzothiazole derivative for organic electroluminescent devices

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • X. H. Zhang
  • O. Y. Wong
  • Z. Q. Gao
  • S. T. Lee
  • S. K. Wu

Detail(s)

Original languageEnglish
Pages (from-to)182-185
Journal / PublicationMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume85
Issue number2-3
Publication statusPublished - 22 Aug 2001

Abstract

A benzothiazole derivative (BT) with a high fluorescence quantum yield (φf=0.92) was synthesized and first used as a dopant in a blue organic electroluminescent device. TPD is N,N′-bis(3-methylphenyl)-N,N′-diphenyl-1,1′-biphenyl-4, 4′-diamine and was used as a hole-transporting material; DPBI is a dimer of N-arylbenzimidazole and was used as an electron-transporting material as well as the host for the blue-emitting dopant, BT. A device with a structure of ITO/TPD/DPBI-2% BT/DPBI/Mg-Ag was fabricated. The devices showed electroluminescence with an emission peak around 475 nm. A luminance of 1260 cdm-2 was achieved at a current density of 400 mAcm-2. The current efficiency of this device is about 0.50 cdA-1 at 5 V. © 2001 Elsevier Science B.V. All rights reserved.

Research Area(s)

  • Benzothiazole derivative, Blue emitter, Electroluminescence, Photoluminescence

Citation Format(s)

A new blue-emitting benzothiazole derivative for organic electroluminescent devices. / Zhang, X. H.; Wong, O. Y.; Gao, Z. Q. et al.
In: Materials Science and Engineering B: Solid-State Materials for Advanced Technology, Vol. 85, No. 2-3, 22.08.2001, p. 182-185.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review