Efficient red organic light-emitting diodes based on a dinuclear europium complex

Han You, Junfeng Fang, Lihong Wang, Xuhui Zhu, Wei Huang, Dongge Ma

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

Pure red organic light-emitting diodes based on a dinuclear europium complex with a structure of (TTA)3Eu(PYO)2Eu(TTA)3 (TTA = thenoyltrifluoroacetonate, PYO = pyridine N-oxide) were presented. The devices showed pure red emission at a peak wavelength of 612 nm with a full width at half maximum of 3 nm, which is a characteristic emission from Eu3+ ion based on 5D0 7F2 transition. The maximum brightness and electroluminescent (EL) efficiency reached 340 cd/m2 at a driving voltage of 19 V and 2.4 cd/A (0.78 lm/W) at a current density of 0.14 mA/cm2, respectively.

Original languageEnglish
Pages (from-to)1514-1517
Number of pages4
JournalOptical Materials
Volume29
Issue number11
DOIs
StatePublished - Jul 2007
Externally publishedYes

Keywords

  • Dinuclear europium
  • Organic light-emitting diode
  • Pure red

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