Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
권호 표지

Studies on The Optical and Electrical Properties if Europium Complexes with Monolayer and Multilayer

Europium complexes 단층과 다층 구조 박막의 전기적ㆍ광학적 특성에 관한 연구

  • 이명호 (홍익대학교 전기제어공학과) ;
  • 표상우 (홍익대학교 전기제어공학과) ;
  • 이한성 (홍익대학교 전기제어공학과) ;
  • 김영관 (홍익대학교 전기제어공학과) ;
  • 김정수 (홍익대학교 전기제어공학과)
  • Published : 1998.10.01
Download PDF
⟨ Previous Next ⟩

Abstract

Electroluminescent(EL) devices based on organic materials have been of great interest due to their possible applications for large-area flat-panel displays, where they are attractive because of their capability of multicolor emission, and low operation voltage. In this study, glass substrate/ITO/Eu(TTA)$_3$(phen)/Al, glass substrate/ITO/Eu(TTA)$_3$(phen)/Al and glass substrate/ITO/Eu(TTA)$_3$(phen)/AlQ$_3$/Al structures were fabricated by vacuum evaporation method, where aromatic diamine(TPD) was used as a hole transporting material, Eu(TTA)$_3$(phen) as an emitting material, and Tris(8-hydroxyquinoline) aluminu-m(AlQ$_3$) as an electron transporting layer. Electrolumescent(EL) and I-V characteristics of Eu(TTA)$_3$-(-phen) were investigated. These structures show the red EL spectra, which are almost the same at the PL spectrum of Eu(TTA)$_3$(phen). I-V characteristics of this structure show that turn-on voltage was 9V and current density was 0.01A/㎤ at a operation voltage of 9V. Electrical transporting phenomena of these structures were explained using the trapped-charge-limited current model with I-V characteristics.

Keywords

References

  1. Polymer Science and Technology v.7 no.6 전기 발광 고분자 소재 및 소자 정태형
  2. SID 96 DIGEST An Overview of Organic Electroluminescent Materials and Devices C. W. Tang
  3. Extended Abstracts of the 1996 International Conference on Solid State Devices and Materials, Yokohama Multilayer Organic Light Emitting Diodes for Efficient Carrier Injection and Confinement D. Ammermann(et al.)
  4. SID 96 DIGEST Nonel Transparent Oganic Electroluminescence Device M. E. Thompson(et.)
  5. Organic ELetroluminescent materials and devices Seizo Miyata
  6. Euro Display'96 High performance precursor light emitting polymers Paul May
  7. Solid State Communications v.99 no.3 Multilayer organic Light-Emitting Diodes Xuezhong Jiang(et al.)
  8. Organic Electroluminescent Materials and Devices Siezo Miyata
  9. Appl. Phys. Lett. v.68 no.23 Electron and hole transport inpoly(p-phenylene vinylene) decives P. W. M. Blom(et al.)
  10. Synthetic Metals. v.85 Space-charge limited current and electroluminescence in conjugated polymer-based LEDs V. N. Savvate'ev;M. Tarabia(et al.)