A New Series of Blue Emitting Pyrazine Derivatives for Organic Electroluminescence Devices

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)22_Publication in policy or professional journal

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Author(s)

  • M. W. Liu
  • X. H. Zhang
  • W. Y. Lai
  • X. Q. Lin
  • F. L. Wong
  • Z. Q. Gao
  • L. S. Hung
  • S. T. Lee

Detail(s)

Original languageEnglish
Pages (from-to)203-211
Journal / PublicationPhysica Status Solidi (A) Applied Research
Volume185
Issue number2
Publication statusPublished - Jun 2001

Abstract

A new series of blue emitting dopants based on pyrazine derivative has been synthesized and used in electroluminescent (EL) devices. The EL cells have a configuration of ITO/NPB/TPBI doped with pyrazine derivatives/Mg:Ag; where NPB is N,N′-bis-(1-naphthyl)N,N′-diphenyl-1,1′biphenyl-4-4′- diamine and TPBI is a trimer of N-arylbenzimidazoles. Four different pyrazine derivatives have been used and their photoluminescence and EL properties were compared in the light of their molecular structures. EL devices giving bright blue emission peaked at 468 nm; an optimum luminance of 1200 cd/m2 at a current density of 150 mA/cm2; and a carrent efficiency of 1.4 cd/A at 5 mA/cm2 have been obtained.

Citation Format(s)

A New Series of Blue Emitting Pyrazine Derivatives for Organic Electroluminescence Devices. / Liu, M. W.; Zhang, X. H.; Lai, W. Y. et al.

In: Physica Status Solidi (A) Applied Research, Vol. 185, No. 2, 06.2001, p. 203-211.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)22_Publication in policy or professional journal