Blue organic LEDs with improved power efficiency

IEEE Transactions on Electron Devices

Volumn 57, Issue 1, 2010, Pages 125-128

  Zhang, H M ^a   Choy, Wallace C H ^a   Li, K ^a  

^a UNIVERSITY OF HONG KONG   (Hong Kong)

Author keywords

Blue light emission; Doping hole injection layer; Double emission layer; Organic LEDs; Power efficiency

Indexed keywords

BLUE LIGHT EMISSIONS; DOPING HOLES; DOUBLE EMISSION LAYERS; ORGANIC LEDS; POWER EFFICIENCY;

ANALOG DIFFERENTIAL ANALYZERS; BENZENE; ELECTRON INJECTION; LIGHT EMISSION;

HOLE TRAPS;

EID: 73349088419     PISSN: 00189383     EISSN: None     Source Type: Journal    
DOI: 10.1109/TED.2009.2033641     Document Type: Article

References (10)

1. C. Adachi, R. C. Kwong, P. Djurovich, V. Adamovich, M. A. Baldo, M. E. Thompson, and S. R. Forrest, "Endothermic energy transfer: A mechanism for generating very efficient high-energy phosphorescent emission in organic materials," Appl. Phys. Lett., vol.79, no.13, pp. 2082-2084, Sep. 2001. (Pubitemid 33666296)
2. S. W. Wen, M. T. Lee, and C. H. Chen, "Recent development of blue fluorescent OLED materials and devices," J. Display Technol., vol.1, no.1, pp. 90-99, 2005.
3. Z. Q. Gao, B. X. Mi, C. H. Chen, K. W. Cheah, Y. K. Cheng, and W. S. Wen, "High-efficiency deep blue host for organic light-emitting devices," Appl. Phys. Lett., vol.90, no.12, pp. 123 506-1-123 506-3, Mar. 2007.
4. M. T. Lee, H. H. Chen, C. H. Liao, C. H. Tsai, and C. H. Chen, "Stable styrylamine-doped blue organic electroluminescent device based on 2-methyl-9, 10-di(2-naphthyl)anthracene," Appl. Phys. Lett., vol.85, no.15, pp. 3301-3303, Oct. 2004.
5. Y. Sun, N. C. Giebink, H. Kanno, B. Ma, M. E. Thompson, and S. R. Forrest, "Management of singlet and triplet excitons for efficient white organic light-emitting devices," Nature, vol.440, no.7086, pp. 908-912, Apr. 2006.
6. B. D. Chin and C. Lee, "Confinement of charge carriers and excitons in electrophosphorescent devices: Mechanism of light emission and degradation," Adv. Mater., vol.19, no.16, pp. 2061-2066, Aug. 2007.
7. 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., vol.85, no.17, pp. 3911-3913, Oct. 2004.
8. J. W. Kang, S. H. Lee, H. D. Park, W. I. Jeong, K. M. Yoo, Y. S. Park, and J. J. Kim, "Low roll-off of efficiency at high current density in phosphorescent organic light emitting diodes," Appl. Phys. Lett., vol.90, no.22, pp. 223 508-1-223 508-3, May 2007.
9. T. Zheng and W. C. H. Choy, "High-efficiency blue fluorescent organic light emitting devices based on double emission layers," J. Phys. D, Appl. Phys., vol.41, no.5, pp. 055 103-1-055 103-5, Mar. 2008.
10. S. W. Tsang, Z. H. Lua, and Y. Tao, "Engineering carrier transport across organic heterojunctions by interface doping," Appl. Phys. Lett., vol.90, no.13, pp. 132 115-1-132 115-3, Mar. 2007.