Study on the Fabrication and Characterization of Red-Light-Emitting Organic Electroluminescent Devices Using Europium Complexes

  • Lee, Sang-Pil (Dept. of Electrical and Control Engineering, Hong-Ik University) ;
  • Choi, Don-Soo (Dept. of Chemical Engineering, Hong-Ik University) ;
  • Lee, Seung-Hee (Dept. of Industrial Engineering, Hong-Ik University) ;
  • Zyung, Tae-Hyung (Electronics and Telecommuncations Research Institute) ;
  • Kim, Young-Kwan (Dept. of Chemical Engineering, Hong-Ik University) ;
  • Kim, Jung-Soo (Dept. of Electrical and Control Engineering, Hong-Ik University)
  • Published : 2000.01.13

Abstract

Organic electroluminescent devices (OELDs) have received a great deal of attention due to their potential application as full-color displays. Europium complexes are known as excellent red light-emitting materials for OELDs since they show intense photoluminescence at around 612 nm with a narrow spectral bandwidth. In this study, a novel europium complex, $Eu(TTA)_3(TPPO)$ was synthesized and its photoluminescent and electroluminescent characteristics were investigated with a device structure of ITO/TPD/$Eu(TTA)_3(TPPO)$/ $Alq_3$/Al, where sharp emission at the wavelength of 615 nm has been observed. Details on the electrical properties of these structures was also discussed.

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