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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Electrical Characteristics on the Variation of Thickness and Deposition Rate in Organic Layer of OLEDs

유기발광 소자에서 유기층의 두께 및 증착속도 변화에 따른 전기적 특성

  • Published : 2006.04.01
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Abstract

OLEDs(Organic Light Emitting Diodes) are attractive as alternative display components because of their relative merits of being self-emitting, having large intrinsic viewing angle and fast switching speed. But because of their relatively short history of development, much remains to be studied in terms of their basic device physics and design, manufacturing techniques, stability and so on. We investigated electrical properties of N, N-diphenyl-N, N bis (3-methyphenyl-l,1'-biphenyl-4,4'-diamine (TPD) and tris-8-hydroxyquinoline aluminum$(Alq_3)$ when their thicknesses were changed variedly from 3:7 to 5:5 of their thickness ratios. And we also studied properties of OLED depend on their deposition rate between $0.05{\sim}0.2$ nm/s.

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References

  1. C. W. Tang and S. A. VanSlyke, 'Organic electroluminescent diodes', Appl. Phys. Lett., Vol. 51, p. 913, 1987
  2. S. K. Kim, D. H. Chung, H. S. Lee, H. N. Cho, J. W. Park, J. W. Hong, and T. W. Kim, 'Temperature dependent electrical properties in ITO/TPD/ $Alq_3$/AI organic lightemitting diodes', Synthetic Matals, Vol. 137, p. 1041, 2003 https://doi.org/10.1016/S0379-6779(02)00895-0
  3. W. J. Kim, Y. H. Lee, J. H. Yang, T. Y. Kim, T. W. Kim, and J. W. Hong, 'Electrical characteristics and luminous efficiency of OLEDs depending on hole injection layer', ME&D-16, p. 85, 2005
  4. C. W. Tang, 'An overview of organic electroluminescent materials and devices', SDI 96 DIGEST, 1996
  5. Y. Hamada, T. Sano, H. Fujii, Y. Nishio, H. Takahashi, and K. Shibata 'Organic light-emitting diode using 3-or 5-hydroxyflavone-metal complexes', Appl. Phys. Lett., Vol. 71, No. 23, p. 3338, 1997 https://doi.org/10.1063/1.120330
  6. V. Savvate'ev, J. Friedl, and L. Zou, 'Efficiency peaks in the transient electro-luminescence of multilayer organic light-emitting devices', Appl. Phys. Lett., Vol. 76, p. 2170, 2000 https://doi.org/10.1063/1.126287
  7. S. K. Kim, J. W. Hong, and T. W. Kim, 'Current voltage characteristics of organic light emitting diodes with a variation of temperature', Trans. KIEE., Vol. 51-C-7, 2002
  8. C. Qiu, H. Chen, and M. Wong, 'Dependence of the current and power efficiencies of organic light-emitting diode on the thickness of the constituent organic layers', IEEE T Electron Dev., Vol. 48, No.9, p. 2131, 2001 https://doi.org/10.1109/16.944206
  9. J. R. Barker, 'Non-equilibrium quantum transport in finite device structures in the presence of non-self-averaged atomistic impurity scattering', Semicond. Sci. Tech., Vol. 19, No.4, p. S56, 2004 https://doi.org/10.1088/0268-1242/19/4/021
  10. H. Mu, H. Shen, and D. Klotzkin, 'Dependence of film morphology on deposition rate in ITO/TPD/$ Alq_3$/AI organic luminescent diodes', Solid State Electron., Vol. 48, No. 10-11, p. 2085, 2004
  11. C. B. Lee, A. Uddin, X. Hu, and T. G. Anderson, 'Study of $ Alq_3$ thermal evaporation rate effects on the OLED', Mat. Sci. Eng. B, Vol. 112, No.1, p. 14, 2004
  12. I. D. Parker, 'Device characteristics in polymer light-emitting diodes', J. Appl. Phys., 75, p. 1656, 1994 https://doi.org/10.1063/1.356350
  13. Y. Qiu and D. Q. Zhang, 'Dependence of the performance of the organic electro-luminescent devices upon the deposition rate of organic thin films', Synth. Metals. 110, p. 241, 2000 https://doi.org/10.1016/S0379-6779(99)00300-8