Journal of the Semiconductor & Display Technology (반도체디스플레이기술학회지)

The Korean Society Of Semiconductor & Display Technology (한국반도체디스플레이기술학회)
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Fabrication and Characterization of Red OLED on the Plastic Substrate

플라스틱 기판상에 적색 OLED 제작과 특성 연구

  • Jeong, Jin-Cheol (Department of Electronics Engineering, Dankook University) ;
  • Kim, Hyeong-Seok (Department of Electronics Engineering, Dankook University) ;
  • Kim, Won-Ki (Department of Electronics Engineering, Dankook University) ;
  • Jang, Ji-Geun (Department of Electronics Engineering, Dankook University)
  • Published : 2009.12.31
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Abstract

A high efficient organic red light emitting device with structure of DNTPD/TAPC/$Bebq_2$ :[$(pq)_2Ir(acac)$, SFC-411]/SFC-137 was fabricated on the plastic substrate, which can be applied in the fields of flexible display and illumination. In the device structure, N,N'-diphenyl-N,N'-bis-[4-(phenyl-m-tolylamino)-phenyl]-biphenyl-4,4'-diamine[DNTPD] as a hole injection layer and 1,1-bis-(di-4-tolylaminophenyl) cyclohexane [TAPC] as a hole transport were used. Bis(10-hydroxybenzo[h]quinolinato) beryllium complex [$Bebq_2$] was used as a light emitting host material. The host material, $Bebq_2$ was doubly doped with volume ratio of 7% iridium(III)bis-(2-phenylquinoline)acetylacetonate[$(pq)_2$Ir(acac)] and 3% SFC-411[red phosphor dye coded by the proprietary company]. And then, SFC-137 was used as an electron transport layer. The luminous intensity and current efficiency of the fabricated device were $22,780\;cd/m^2$ at 9V and 17.3 cd/A under $10,000\;cd/m^2$, respectively. The maximum current efficiency of the device was 22.4cd/A under $580\;cd/m^2$.

Keywords

References

  1. Dong-ming Cheng, Feng-ying Ma, Xing-yuan Liu, “Pure red emission of dye-doped organic molecules from microcavity organic light emitting diode”, Optics & Laser Technology, Vol. 39, pp. 720-723, 2007. https://doi.org/10.1016/j.optlastec.2006.03.012
  2. W.G. Quirino, R.D. Adati, S.A.M. Lima, C. Legnani, M. Jafelicci Jr, M.R. Davolos, M. Cremona, “Electroluminescence of a device based on europium a-diketonate with phosphine oxide complex”, Thin Solid Films, Vol. 515, pp. 927-931, 2006. https://doi.org/10.1016/j.tsf.2006.07.066
  3. C.W. Tang, S.A. VanSlyke, “Organic electro-luminescent diodes”, Appl. Phys. Lett., Vol. 51, pp. 913-915, 1987. https://doi.org/10.1063/1.98799
  4. Stergios Logothetidis, “Flexible organic electronic devices: Materials, process and applications”, Materials Science and Engineering: B, Vol. 152, pp. 96-104, 2008. https://doi.org/10.1016/j.mseb.2008.06.009
  5. Xiong Gong, Jacek C. Ostrowski, Guillermo C. Bazan, Daniel Moses, Alan J. Heeger, “Red electrophosphorescence from polymer doped with iridium complex”, Appl. Phys. Lett., Vol. 81, pp. 3711-3713, 2002. https://doi.org/10.1063/1.1511283
  6. Chihaya Adachi, Marc A. Baldo, Stephen R. Forrest, Mark E. Thompson, “High-efficiency organic electrophosphorescent devices with tris(2-phenylpyridine) iridium doped into electron-transporting materials”, Appl. Phys. Lett., Vol. 77, pp. 904 -906, 2000. https://doi.org/10.1063/1.1306639
  7. Sung Ouk Jung, Yun-Hi Kim, Soon-Ki Kwon, Hyoung- Yun Oh, Jung-Hwan Yang, “New hole blocking material for green-emitting phosphorescent organic electroluminescent devices”, Organic Electronics, Vol. 8, pp. 349-356, 2007. https://doi.org/10.1016/j.orgel.2006.12.005
  8. M. A. Baldo, C. Adachi, S. R. Forrest, “Transient analysis of organic electrophosphorescence. II. Transient analysis of triplet-triplet annihilation”, Phys. Rev. B, Vol. 62, pp. 10967-10977, 2000. https://doi.org/10.1103/PhysRevB.62.10967
  9. Kyoung Soo Yook, Soon Ok Jeon, Chul Woong Joo, Jun Yeob Lee, “Color stability and suppressed efficiency roll-off in white organic light-emitting diodes through management of interlayer and host properties”, Journal of Industrial and Engineering Chemistry, Vol. 15, pp. 420-422, 2009. https://doi.org/10.1016/j.jiec.2008.11.011
  10. Kyoung Soo Yook, Soon Ok Jeon, Chul Woong Joo, Jun Yeob Lee, Myung Seop Kim, Hong Seok Choi, Seok Jong Lee, Chang-Wook Han, Yoon Heung Tak, “Highly efficient pure white phosphorescent organic light-emitting diodes using a deep blue phosphorescent emitting material”, Organic Electronics, Vol. 10, pp. 681-685, 2009. https://doi.org/10.1016/j.orgel.2009.02.023
  11. A. Kohler, J.S. Wilson, R.H. Friend, “Fluorescence and Phosphorescence in Organic Materials”, Adv. Mater., Vol. 14, pp. 701-707, 2002. https://doi.org/10.1002/1521-4095(20020517)14:10<701::AID-ADMA701>3.0.CO;2-4
  12. Hsiao-Wen Hong, Teng-Ming Chen, “Effect of substituents on the photoluminescent and electroluminescent properties of substituted cyclometalated iridium(III) complexes”, Materials Chemistry and Physics, Vol. 101, pp. 170-176, 2007. https://doi.org/10.1016/j.matchemphys.2006.03.011
  13. Soon Ok Jeon, Kyoung Soo Yook, Chul Woong Joo, Hyo Suk Son, Sang Eok Jang, Jun Yeob Lee, “High efficiency red phosphorescent organic light-emitting diodes using a spirobenzofluorene type phosphine oxide as a host material”, Organic Electronics, Vol. 10, pp. 998-1000, 2009. https://doi.org/10.1016/j.orgel.2009.03.013
  14. Myeon-Cheon Choi, Youngkyoo Kim, Chang-Sik Ha, “Polymers for flexible displays: From material selection to device applications”, Prog. Polym. Sci., Vol. 33, pp. 581-630, 2008. https://doi.org/10.1016/j.progpolymsci.2007.11.004