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Energy Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. S6 — Nov. 7, 2011
  • pp: A1265–A1271

Improving the performance of OLEDs by using a low-temperature-evaporable n-dopant and a high-mobility electron transport host

Lian Duan, Deqiang Zhang, Yanrui Li, Guohui Zhang, and Yong Qiu  »View Author Affiliations

Optics Express, Vol. 19, Issue S6, pp. A1265-A1271 (2011)

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Ideal n-type layers are highly desired for high performance organic light emitting diodes (OLEDs). For the first time, we studied the combination of a low-temperature-evaporable n-dopant KBH4 and a high mobility electron transport material 9,10-bis(3-(pyridin-3-yl)phenyl)anthracene (DPyPA). The excellent transporting property of the DPyPA: KBH4 layer allows the fine tuning of the OLED performance by varying the thickness of the n-doped layer in a wide range (from 10 nm to 50 nm, 100 nm, 150 nm and 200 nm). The device with the optimized n-type layer thickness of 150 nm shows the best performance with a high current efficiency of 27.60 cd/A at the brightness 10,000 cd/m2, which is about 40% higher than the device with a 10 nm n-type layer (19.95 cd/A at 10,000 cd/m2). The high performance is attributed to the optimization of optical path and the decrease of the loss in the organic layer/cathode interface due to the thick n-doped layer.

© 2011 OSA

OCIS Codes
(230.3670) Optical devices : Light-emitting diodes
(230.4170) Optical devices : Multilayers

ToC Category:
Light-Emitting Diodes

Original Manuscript: August 2, 2011
Revised Manuscript: October 7, 2011
Manuscript Accepted: October 7, 2011
Published: November 7, 2011

Virtual Issues
Organic Light-Emitting Diodes (2011) Optics Express

Lian Duan, Deqiang Zhang, Yanrui Li, Guohui Zhang, and Yong Qiu, "Improving the performance of OLEDs by using a low-temperature-evaporable n-dopant and a high-mobility electron transport host," Opt. Express 19, A1265-A1271 (2011)

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  1. C. W. Tang and S. A. Vanslyke, “Organic Electroluminescent Diodes,” Appl. Phys. Lett.51(12), 913–915 (1987). [CrossRef]
  2. 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. (Deerfield Beach Fla.)14(22), 1633–1636 (2002). [CrossRef]
  3. T. W. Lee, T. Noh, B. K. Choi, M. S. Kim, D. W. Shin, and J. Kido, “High-efficiency stacked white organic light-emitting diodes,” Appl. Phys. Lett.92(4), 043301 (2008). [CrossRef]
  4. S. Reineke, F. Lindner, G. Schwartz, N. Seidler, K. Walzer, B. Lüssem, and K. Leo, “White organic light-emitting diodes with fluorescent tube efficiency,” Nature459(7244), 234–238 (2009). [CrossRef] [PubMed]
  5. J. Kido and T. Matsumoto, “Bright organic electroluminescent devices having a metal-doped electron-injecting layer,” Appl. Phys. Lett.73(20), 2866–2868 (1998). [CrossRef]
  6. J. S. Huang, M. Pfeiffer, A. Werner, J. Blochwitz, K. Leo, and S. Y. Liu, “Low-voltage organic electroluminescent devices using pin structures,” Appl. Phys. Lett.80(1), 139–141 (2002). [CrossRef]
  7. C. Chang, M. Hsieh, J. Chen, S. Hwang, and C. H. Chen, “- Highly power efficient organic light-emitting diodes with a p-doping layer,” Appl. Phys. Lett.89(25), 253504 (2006). [CrossRef]
  8. R. Meerheim, K. Walzer, M. Pfeiffer, and K. Leo, “Ultrastable and efficient red organic light emitting diodes with doped transport layers,” Appl. Phys. Lett.89(6), 061111 (2006). [CrossRef]
  9. T. Oyamada, H. Sasabe, C. Adachi, S. Murase, T. Tominaga, and C. Maeda, “Extremely low-voltage driving of organic light-emitting diodes with a Cs-doped phenyldipyrenylphosphine oxide layer as an electron-injection layer,” Appl. Phys. Lett.86(3), 033503 (2005). [CrossRef]
  10. K. S. Yook, S. O. Jeon, S.-Y. Min, J. Y. Lee, H.-J. Yang, T. Noh, S.-K. Kang, and T.-W. Lee, “Highly Efficient p-i-n and Tandem Organic Light-Emitting Devices Using an Air-Stable and Low-Temperature-Evaporable Metal Azide as an n-Dopant,” Adv. Funct. Mater.20(11), 1797–1802 (2010). [CrossRef]
  11. Q. Liu, D. Q. Zhang, L. Duan, G. H. Zhang, L. D. Wang, Y. Cao, and Y. Qiu, “Thermally Decomposable KBH(4) as an Efficient Electron Injection Material for Organic Light-Emitting Diodes,” Jpn. J. Appl. Phys.48(8), 080205 (2009). [CrossRef]
  12. Y. D. Sun, L. Duan, D. Q. Zhang, J. Qiao, G. F. Dong, L. D. Wang, and Y. Qiu, “A Pyridine-Containing Anthracene Derivative with High Electron and Hole Mobilities for Highly Efficient and Stable Fluorescent Organic Light-Emitting Diodes,” Adv. Funct. Mater.21(10), 1881–1886 (2011). [CrossRef]
  13. M. Y. Chan, S. L. Lai, K. M. Lau, M. K. Fung, C. S. Lee, and S. T. Lee, “Influences of Connecting Unit Architecture on the Performance of Tandem Organic Light-Emitting Devices,” Adv. Funct. Mater.17(14), 2509–2514 (2007). [CrossRef]

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