Ultra-high efficiency electrophosphorescent p-i-n OLEDs with double emission layers

Proceedings of SPIE - The International Society for Optical Engineering

Volumn 5519, Issue , 2004, Pages 42-47

  He, Gufeng ^a   Walzer, Karsten ^a   Pfeiffer, Martin ^a   Leo, Karl ^a   Pudzich, Robert ^b   Salbeck, Josef ^b  

^a DRESDEN UNIVERSITY OF TECHNOLOGY   (Germany)

^b UNIVERSITY OF KASSEL   (Germany)

Author keywords

Doped transport layers; Doping; Double emission layers; Organic LED; Phosphorescence

Indexed keywords

CURRENT DENSITY; ELECTRON TRANSPORT PROPERTIES; EXCITONS; PHOSPHORESCENCE; QUANTUM EFFICIENCY; SEMICONDUCTOR DOPING;

DOPED TRANSPORT LAYERS; DOUBLE EMISSION LAYERS; EMISSION LAYERS; ORGANIC LED;

LIGHT EMITTING DIODES;

EID: 13444288124     PISSN: 0277786X     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1117/12.563310     Document Type: Conference Paper

References (11)

1. M. Pfeiffer, S.R. Forrest, K. Leo, and M.E. Thompson, "Electrophosphorescent p-i-n organic light emitting devices for very high efficiency flat panel displays", Adv. Mater. 14, 1633 (2002).
2. G.F. He, O. Schneider, D.S. Qin, X. Zhou, M. Pfeiffer, and K. Leo, "Very high-efficiency and low voltage phosphorescent organic light-emitting diodes based on a p-i-n junction", J. Appl. Phys. 95, 5773, (2004).
3. 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. 77, 904 (2000).
4. 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. 79, 156 (2001).
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7. For more details see: G. He, M. Pfeiffer, K. Leo, M. Hofmann, J. Birnstock, R. Pudzich, and J. Salbeck, "High efficiency and low voltage p-i-n electrophosphorescent organic light-emitting diodes with double emission layers", Appl. Phys. Lett. (accepted)
8. J. Blochwitz, T. Fritz, M. Pfeiffer, K. Leo, D.M. Alloway, P.A. Lee, and N.R. Amstrong, "Interface electronic structure of organic semiconductors with controlled doping levels", Organic Electronics, 2, 97 (2001).
9. M.A. Baldo and S.R. Forrest, "Transient analysis of organic electrophosphorescence. II. Transient analysis of triplet-triplet annihilation", Phys. Rev. B 62, 10967 (2000).
10. C. Adachi, R. Kwong, and S.R. Forrest, "Efficient electrophosphorescence using a doped ambipolar conductive molecular organic thin film", Org. Electron. 2, 37 (2001).
11. www.novaled.com