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Device characteristics of blue phosphorescent organic light-emitting diodes depending on the electron transport materials

  • Lee, Hyun-Koo (Department of Electrical Engineering and Computer Science, Inter-University Semiconductor Research Center, Seoul National University) ;
  • Ahn, Hyuk (Department of Electrical Engineering and Computer Science, Inter-University Semiconductor Research Center, Seoul National University) ;
  • Lee, Chang-Hee (Department of Electrical Engineering and Computer Science, Inter-University Semiconductor Research Center, Seoul National University)
  • Received : 2011.07.14
  • Accepted : 2011.08.25
  • Published : 2011.12.31
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Abstract

Iridium-(III)-bis[(4,6-di-fluorophenyl)-pyridinate-N,$C^2$' ]picolinate-based blue phosphorescent organic light-emitting diodes with different electron transport materials were fabricated. Each electron transport material had different electron mobilities and triplet energies. The device with 1,3,5-tri(m-pyrid-3-yl-phenyl)benzene had the highest external quantum efficiency (20.1%) and luminous current efficiency (33.1 cd/A) due to its high electron mobility and triplet energy. The operational stability of each device was also compared with that of the others. The device with 2,2',2"(1,3,5-benzenetriyl)tris-(1-phenyl-1H-benzimidazole) was found to have a longer lifetime than the other devices.

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References

  1. C.W. Tang and S.A. VanSlyke, Appl. Phys. Lett. 51, 913 (1987). https://doi.org/10.1063/1.98799
  2. M.A. Baldo, D.F. O'Brien, Y. You, A. Shoustikov, S. Sibley, M.E. Thompson, and S.R. Forrest, Nature 395, 151 (1998). https://doi.org/10.1038/25954
  3. K. Goushi, R. Kwong, J.J. Brown, H. Sasabe, and C. Adachi, J. Appl. Phys. 95, 7798 (2004). https://doi.org/10.1063/1.1751232
  4. J. Lee, N. Chopra, S.-H. Eom, Y. Zheng, J. Xue, F. So, and J. Shi, Appl. Phys. Lett. 93, 123306 (2008). https://doi.org/10.1063/1.2978235
  5. D. Tanaka, T. Takeda, T. Chiba, S. Watanabe, and J. Kido, Chem. Lett. 36, 262 (2007). https://doi.org/10.1246/cl.2007.262
  6. S. Reineke, F. Lindner, G. Schwartz, N. Seidler, K. Walzer, B. Lüssem, and K. Leo, Nature 459, 234 (2009). https://doi.org/10.1038/nature08003
  7. W.-Y. Hung, T.-H. Ke, Y.-T. Lin, C.-C. Wu, T.-H. Hung, T.-C. Chao, K.-T.Wong, and C.-I.Wu, Appl. Phys. Lett. 88, 064102 (2006). https://doi.org/10.1063/1.2172708
  8. S.-J. Su, T. Chiba, T. Takeda, and J. Kido, Adv. Mater. 20, 2125 (2008). https://doi.org/10.1002/adma.200701730
  9. S. Reineke, K.Walzer, and K. Leo, Phys. Rev. B 75, 125328 (2007). https://doi.org/10.1103/PhysRevB.75.125328
  10. F.X. Zang, T.C. Sum, A.C.H. Huan, T.L. Li, W.L. Li, and F. Zhu, Appl. Phys. Lett. 93, 023309 (2008). https://doi.org/10.1063/1.2955527
  11. V. Sivasubramaniam, F. Brodkorb, S. Hanning, H.P. Loebl, V. van Elsbergen, H. Boerner, U. Scherf, and M. Kreyenschmidt, J. Fluor. Chem. 130, 640 (2009). https://doi.org/10.1016/j.jfluchem.2009.04.009
  12. T. Nakayama, K. Hiyama, K. Furukawa, and H. Ohtani, Konica Minolta Technology Report 5, 115 (2008).
  13. T. Tsuboi, S.-W. Liu, M.-F. Wub, and C.-T. Chen, Org. Electron. 10, 1372 (2009). https://doi.org/10.1016/j.orgel.2009.07.020
  14. Z. Wang, P. Lu, S. Chen, Z. Gao, F. Shen, W. Zhang, Y. Xu, H.S. Kwok, and Y. Ma, J. Mater. Chem. 21, 5451 (2011). https://doi.org/10.1039/c1jm10321k

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