Fabrication and characteristics of low-molecular phosphorescent organic light-emitting diodes employed by wet-process

IEICE Transactions on Electronics

Volumn E87-C, Issue 12, 2004, Pages 2053-2058

  Hino, Yuichi ^a   Hirotake, Kajii ^a   Ohmori, Yutaka ^a  

^a OSAKA UNIVERSITY   (Japan)

Author keywords

Organic light emitting diode; Phosphorescent material; Starburst molecule; TDAPB; Wet process

Indexed keywords

ABSORPTION; ENERGY TRANSFER; EPOXY RESINS; FABRICATION; HEAVY METALS; LIGHT EMITTING DIODES; PHOSPHORESCENCE; POLYMERS; QUANTUM EFFICIENCY; SPIN COATING;

ORGANIC LIGHT-EMITTING DIODES; PHOSPHORESCENT MATERIALS; STARBURST MOLECULE; TDAPB; WET PROCESS;

MOLECULAR STRUCTURE;

EID: 11144351143     PISSN: 09168524     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Conference Paper

References (29)

1. M.A. Baldo, D.F. O'Brien, Y. You, A. Shoustikov, S. Sibley, M.E. Thompson, and S.R. Forrest, "Highly efficient phosphorescent emission from organic electroluminescent devices," Nature, vol.395, pp.151-154, 1998.
2. M.A. Baldo, S. Lamansky, P.E. Burrows, M.E. Thompson, and S.R. Forrest, "Very high-efficiency green organic light-emitting devices based on electrophosphorescence," Appl. Phys. Lett., vol.75, no.1, pp.4-6, 1999.
3. C.W. Tang and S.A. Van Slyke, "Organic electroluminescent diodes," Appl. Phys. Lett., vol.51, no.12, pp.913-915, 1987.
4. J.H. Burroughes, D.D.C. Bradley, A.R. Brown, R.M. Marks, K. Mackay, R.H. Friend, P.L. Burns, and A.B. Holmes, "Light-emitting diodes based on conjugated polymers," Nature, vol.347, pp.539-541, 1990.
5. J. Kido, K. Hongawa, K. Okuyama, and K. Nagai, "White light-emitting organic electroluminescent devices using the poly (N-vinylcarbazole) emitter layer doped with three fluorescent dyes," Appl. Phys. Lett., vol.64, no.7, pp.815-817, 1994.
6. Y. Ohmori, M. Uchida, K. Muro, and K. Yoshino, "Visible-light electroluminescent diodes utilizing poly (3-alkylthiophene)," Jpn. J. Appl. Phys.2, Lett., vol.30, no.11B, pp.L1938-L1940, 1991.
7. Y. Ohmori, M. Uchida, K. Muro, and K. Yoshino, "Blue electroluminescent diodes utilizing poly (alkylfluorene)," Jpn. J. Appl. Phys.2, Lett., vol.30, no.11B, pp.L1941-L1943, 1991.
8. S. Tokito, M. Suzuki, and F. Sato, "Improvement of emission efficiency in polymer light-emitting devices based on phosphorescent polymers," Thin Solid Films, vol.445, no.2, pp.353-357, 2003.
9. S. Tokito, M. Suzuki, F. Sato, M. Kamachi, and K. Shirane, "High-efficiency phosphorescent polymer light-emitting devices," Organic Electronics, vol.4, no.2-3, pp. 105-111, 2003.
10. J.P.J. Markham, S.C. Lo, S.W. Magennis, P.L Burn, and I.D.W. Samuel, "High-efficiency green phosphorescence from spin-coated single-layer dendrimer light-emitting diodes," Appl. Phys. Lett., vol.80, no.15, pp.2645-2647, 2002.
11. T.D. Anthopoulos, J.P.J. Markham, E.B. Namdas, I.D.W. Samuel, S.-C. Lo, and P.L. Burn, "Highly efficient single-layer dendrimer light-emitting diodes with balanced charge transport," Appl. Phys. Lett., vol.82, no.26, pp.4824-4826, 2003.
12. M.A. Baldo, M.E. Thompson, and S.R. Forrest, "High-efficiency fluorescent organic light-emitting devices using a phosphorescent sensitizer," Nature, vol.403, pp.750-753, 2000.
13. C. Adachi, R. Kwong, and S.R. Forrest, "Efficient electrophosphorescence using a doped ambipolar conductive molecular organic thin film," Organic Electronics, vol.2, no.1, pp.37-43, 2001.
14. Y. Shirota, Y. Kuwabara, D. Okuda, R. Okuda, H. Ogawa, H. Inada, T. Wakimoto, H. Nakada, Y. Yonemoto, S. Kawami, and K. Imai, "Starburst molecules based on π-electron systems as materials for organic electroluminescent devices," J. Lumi., vol.72-74, pp.985-991, 1997.
15. Y. Shirota, K. Okumoto, and H. Inada, "Thermally stable organic light-emitting diodes using new families of hole-transporting amorphous molecular materials," Synth. Met., vol.111-112, pp.387-391, 2000.
16. K.M. Vaeth and C.W. Tang, "Light-emitting diodes based on phosphorescent guest/polymeric host systems," J. Appl. Phys., vol.92, no.7, pp.3447-3453, 2002.
17. X. Gong, J.C. Ostrowski, G.C. Bazan, D. Moses, and A.J. Heeger, "Red electrophosphorescence from polymer doped with iridium complex," Appl. Phys. Lett., vol.81, no.20, pp.3711-3713, 2002.
18. F.-C. Chen, Y. Yang, M.E. Thompson, and J. Kido, "High-performance polymer light-emitting diodes doped with a red phosphorescent iridium complex," Appl. Phys. Lett., vol.80, no.13, pp.2308-2310, 2002.
19. S.-C. Chang, G. He, F.-C. Chen, T.-F. Guo, and Y. Yang, "Degradation mechanism of phosphorescent-dye-doped polymer light-emitting diodes," Appl. Phys. Lett., vol.79, no.13, pp.2088-2090, 2001.
20. Y. Kawamura, S. Yanagida, and S.R. Forrest, "Energy transfer in polymer electrophosphorescent light emitting devices with single and multiple doped luminescent layers," J. Appl. Phys., vol.92, no.1, pp.87-93, 2002.
21. M.-J. Yang and T. Tsutsui, "Use of poly (9-vinylcarbazole) as host material for iridium complexes in high-efficiency organic light-emitting devices," Jpn. J. Appl. Phys.2, Lett., vol.39, no.8A, pp.L828-L829, 2000.
22. A. Elschner, F. Bruder, H.W. Heuer, F. Jonas, A. Karbach, S. Kirchmeyer, S. Thurm, and R. Wehrmann, "PEDT/PSS for efficient hole-injection in hybrid organic light-emitting diodes," Synth. Met., vol.111-112, pp.139-143, 2000.
23. A. Elschner, H.W. Heuer, F. Jonas, S. Kirchmeyer, R. Wehrmann, and K. Wussow, "Gallium complexes in three-layer organic electroluminescent devices," Adv. Mater., vol.13, no.23, pp.1811-1814, 2001.
24. Y.-Y. Noh, C.-L. Lee, H.W. Lee, H.-N. Cho, and J.-J. Kim, "Singlet and triplet energy transfer in phosphorescent dye doped polymer light emitting devices," Mat. Res. Soc. Symp. Proc., vol.708, pp.BB3.40.1-BB3.40.6, 2002.
25. C. Adachi, M.A. Baldo, S.R. Forrest, S. Lamansky, M.E. Thompson, and R.C. Kwong, "High-efficiency red electrophosphorescence devices," Appl. Phys. Lett., vol.78, no.11, pp.1622-1624, 2001.
26. M.A. Baldo, C. Adachi, and S.R. Forrest, "Transient analysis of organic electrophosphorescence, II. Transient analysis of triplet-triplet annihilation," Phys. Rev. B, vol.62, no.16, pp.10967-10977, 2000.
27. Y.-Y. Noh, C.-L. Lee, J. -J. Kim, and K. Yase, "Energy transfer and device performance in phosphorescent dye doped polymer light emitting diodes," J. Chem. Phys., vol.118, no.6, pp.2853-2864, 2003.
28. M. Ikai, S. Tokito, Y. Sakamoto, T. Suzuki, and Y. Taga, "Highly efficient phosphorescence from organic light-emitting devices with an exciton-block layer," Appl. Phys. Lett., vol.79, no.2, pp.156-158, 2001.
29. C. Adachi, M.A. Baldo, S.R. Forrest, and M.E. Thompson, "High-efficiency organic electrophosphorescent devices with tris (2-phenylpyridine)iridium doped into electron-transporting materials," Appl. Phys. Lett., vol.77, no.6, pp.904-906, 2000.