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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 2 — Jan. 22, 2007
  • pp: 608–615

A highly color-stability white organic light-emitting diode by color conversion within hole injection layer

C. Li, M. Ichikawa, B. Wei, Y. Taniguchi, H. Kimura, K. Kawaguchi, and K. Sakurai  »View Author Affiliations

Optics Express, Vol. 15, Issue 2, pp. 608-615 (2007)

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We demonstrated a novel-structure white organic light-emitting devices (WOLEDs) composed of a greenish blue fluorescent emitting layer and a red fluorescent dye-doped hole injection layer. The spectra of WOLEDs show no change at a wide range current density operation and long-term continuous operation. We concluded that carriers recombined inside the emitting layer in the WOLEDs to produce a greenish blue electroluminescence (EL), and a part of the EL was absorbed by the red fluorescent guest doped hole injection layer and converted into red photoluminescence (PL); the whole white emission from the device was a mixture of the greenish blue EL and red PL.

© 2007 Optical Society of America

OCIS Codes
(230.3670) Optical devices : Light-emitting diodes
(230.3990) Optical devices : Micro-optical devices
(230.4170) Optical devices : Multilayers

ToC Category:
Optical Devices

Original Manuscript: October 24, 2006
Revised Manuscript: December 10, 2006
Manuscript Accepted: January 8, 2007
Published: January 22, 2007

C. Li, M. Ichikawa, B. Wei, Y. Taniguchi, H. Kimura, K. Kawaguchi, and K. Sakurai, "A highly color-stability white organic light-emitting diode by color conversion within hole injection layer," Opt. Express 15, 608-615 (2007)

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  1. B. W. D’Andrade and S. R. Forrest, "White organic light-emitting devices for Solid-State Lighting," Adv. Mater. 9, 1585-1595 (2004). [CrossRef]
  2. Y. W. Ko, C. H. Chung, J. H. Lee, Y. H. Kim, C. Y. Sohn, B. C. Kim, C. S. Hwang, Y. H. Song, J. Lim, Y. J. Ahn, G. W. Kang, N. Lee and C. Lee, "Efficient white organic light emission by single emitting layer," Thin Solid Films 426, 246-249 (2003). [CrossRef]
  3. Y. Shao and Y. Yang, "White organic light-emitting diodes prepared by a fused organic solid solution method," Appl. Phys. Lett. 86, 073510-073512 (2005). [CrossRef]
  4. J. Kido, M. Kimura and K. Nagai, "Multilayer white light-emitting organic electroluminescent device," Science 267, 1332 - 1334 (1995). [CrossRef] [PubMed]
  5. R. S. Deshpande, V. Bulovic´ and S. R. Forrest, "White-light-emitting organic electroluminescent devices based on interlayer sequential energy transfer," Appl. Phys. Lett. 75, 888-890 (1999). [CrossRef]
  6. G. T. Lei, L. D. Wang and Y. Qiu, "Multilayer organic electrophosphorescent white light-emitting diodes without exciton-blocking layer," Appl. Phys. Lett. 88, 103508-103510 (2006). [CrossRef]
  7. C. W. Ko and Y. T. Tao, "Bright white organic light-emitting diode," Appl. Phys. Lett. 79, 4234-4236 (2001). [CrossRef]
  8. B. W. D’Andrade, M. E. Thompson, and S. R. Forrest, "Controlling exciton diffusion in multilayer white phosphorescent organic light emitting devices," Adv. Mater.  14, 147-151 (2002). [CrossRef]
  9. T. Matsumoto, T. Nakada, J. Endo, K. Mori, N. Kawamura, A. Yokoi, and J. Kido, "Multiphoton organic EL device having charge generation layer," SID 03 Digest 979 (2003).
  10. F. F. Guo and D. G. Ma "White organic light-emitting diodes based on tandem structures," Appl. Phys. Lett. 87, 173510-173512 (2005). [CrossRef]
  11. A. R. Duggal, J. J. Shiang, C. M. Heller, and D. F. Foust "Organic light-emitting devices for illumination quality white light," Appl. Phys. Lett. 80, 3470-3472 (2002). [CrossRef]
  12. B. C. Krummacher, V. E. Choong, M. K. Mathai, S. A. Choulis, F. So, F. Jermann, T. Fiedler, and M. Zachau "Highly efficient white organic light-emitting diode," Appl. Phys. Lett. 88, 113506-113508 (2006). [CrossRef]
  13. T. Iwakuma, T. Aragane, Y. Hironaka, K. Fukuoka, H. Ikada, C. Hosokawa, and T. Kusomoto, "Red and white EL materials based on a new fused aromatic ring," SID J. 33, 598-601 (2002). [CrossRef]
  14. C. Hosokawa, S. Toshio, K. Fukuoka, H. Tokailin,Y. Hironaka, H. Ikada, Masakazu Funahashi and T. Kusumoto, "Organic EL materials based on Styryl and Amine derivatives," SID J. 32, 522-525 (2001). [CrossRef]
  15. C. L. Yang, Z. K. Tang, W. K. Ge, J. N. Wang, Z. L. Zhang, X. Y. Jian, "Exciton diffusion in light-emitting organic thin films studied by photocurrent spectra," Appl. Phys. Lett. 83, 1737-1739 (2003). [CrossRef]
  16. H. Mattoussi, H. Murata, C. D. Merritt, Y. Iizumi, J. Kido and Z. H. Kafafi, "Photoluminescence quantum yield of pure and molecularly doped organic solid films," J. Appl. Phys. 86, 2642-2650 (1999). [CrossRef]
  17. H. Bassler, G. Schonherr, M. Abkowitz, and D. M. Pai, "Hopping transport in prototypical organic glasses," Phys. Rev. B 26, 3105-3113 (1982). [CrossRef]
  18. A. Mikami, Y. Nishita and Y. lida, "High efficiency phosphorescent organic light-emitting devices coupled with lateral color-conversion layer," SID 35-3, 1376-1379 (2006). [CrossRef]
  19. C. F. Madigan, M.-H. Lu, and J. C. Sturm, "Improvement of output coupling efficiency of organic light-emitting diodes by backside substrate modification," Appl. Phys. Lett. 76, 1650-1652 (2000). [CrossRef]
  20. S. K. So, W. K. Choi, L. M. Leung, and K. Neyts, "Interference effects in bilayer organic light-emitting diodes," Appl. Phys. Lett. 74, 1939-1941 (1999). [CrossRef]

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