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

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Emission Characteristics of Red OLEDs in the Emitting Layer Position Doped with DCM2 and Rubrene

DCM2와 Rubrene이 첨가된 발광층 위치에 따른 적색 OLED의 발광 특성

  • Jung, Haeng-Yun (Department of Electrical Engineering, Chonnam National University) ;
  • Gu, Hal-Bon (Department of Electrical Engineering, Chonnam National University)
  • Received : 2011.06.03
  • Accepted : 2011.07.23
  • Published : 2011.08.01
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Abstract

In this study, we have fabricated the red OLED (organic light emitting diode). The basic device structure is ITO/hole transporting layer, TPD(500 $\AA$)/red emitting layer, Alq3 doped with DCM2:rubrene(20 $\AA$)/electron transporting layer, Alq3(M) (500 $\AA$-M $\AA$)/LiF(15 $\AA$)/Al(1,000 $\AA$). The thickness of electron transporting layer(500 $\AA$-M $\AA$) changed 0, 20, 40, 60 $\AA$. Turn on voltage of the red OLED was 5 V, 6 V, 6.5 V and 7.5 V, respectively with electron transfer layer changed ratio. Luminance of red OLED was 4,504, 1,840, 1,490 and 1,130 cd/$m^2$, respectively. Optimized electron transfer layer position changed ratio of the red OLED was 0 $\AA$.

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References

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