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

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

DOI QR Code

Electrical and Optical Properties of Organic Light Emission Devices using Selective Doping in a Single Host

단일 호스트를 이용하여 선택적으로 도핑된 OLEDs의 전기 및 광학적 특성

  • 서유석 (순천향대학교 디스플레이신소재공학과) ;
  • 문대규 (순천향대학교 디스플레이신소재공학과)
  • Published : 2010.02.01
Download PDF
⟨ Previous Next ⟩

Abstract

We have fabricated organic white light emitting device by two colors from yellow fluorescence material (5,6,11,12)-Tetraphenylnaphthacene(Rubrene) and blue phosphorescent material (iridum-bis(4,6-difluorophenylpyridinato-N,C2)-picolinate(FIrpic). The threshold voltage is 5.3 V, and the brightness reaches 1000 cd/$m^2$ at 11 V, 14.5 mA/$m^2$. The color of the light corresponds to a CIE coordinate of (0.30, 0.38). The highest efficiency of the device can reach 9.5 cd/A or 5.5 lm/W at 6 V, 0.1 mA/$m^2$.

Keywords

References

  1. 조재영, 오환술, 김태구, 윤석범, "신규 비공액성 청색발광재료 PPPMA-co-DTPM 공중합체 합성을 통한 백색유기발광소자 제작", 전기전자재료학회논문지, 18권, 7호, p. 641, 2005. https://doi.org/10.4313/JKEM.2005.18.7.641
  2. Adachi, M. A. Baldo, M. E. Thompson, and S. R. Forrest, "Nearly 100% internal phosphorescence efficiency in an organic light-emitting device", J. Appl. Phys., Vol. 90, p. 5048, 2001. https://doi.org/10.1063/1.1409582
  3. J. Kido, M. Kimura, and K. Nagai, "Multilayer white light-emitting organic electroluminescent device", Science, Vol. 267, p. 1332, 1995. https://doi.org/10.1126/science.267.5202.1332
  4. J. Kalinowski, P. Di Marco, M. Cocchi, V. Fattori, and N. Camaioni, "Voltage-tunablecolor multilayer organic light emitting diode", Appl. Phys. Lett., Vol. 68, p. 2317, 1996. https://doi.org/10.1063/1.115843
  5. 조재영, 최성진, 윤석범, 오환술, "DPVBi/Alq3:Rubrene 구조를 사용한 2-파장 방식의 백색유기발광소자의 발광특성에 관한 연구", 전기전자재료학회논문지, 16권, 7호, p. 616, 2003. https://doi.org/10.4313/JKEM.2003.16.7.616
  6. K. O. Cheon and J. Shinar, "Bright white small molecular organic light-emitting devices based on a red-emitting guest–host layer and blueemitting 4,4-bis(2,2-diphenylvinyl)-1,1-biphenyl", Appl. Phys. Lett., Vol. 81, p. 1738, 2002. https://doi.org/10.1063/1.1498500
  7. M. A. Baldo, C. Adachi, and S. R. Forrest, "Transient analysis of organic electrophosphorescence. II. Transient analysis of triplettriplet annihilation", Phys. Rev. B, Vol. 62, Issue 16, p. 10967, 2000. https://doi.org/10.1103/PhysRevB.62.10967
  8. Ralph H. Young, Ching W. Tang, and Alfred P. Marchetti, "Current-induced fluorescence quenching in organic light-emitting diodes", Appl. Phys. Lett., Vol. 80, Issue 5, p. 874 2002. https://doi.org/10.1063/1.1445271