OSA's Digital Library

Optics Express

Optics Express

  • Vol. 17, Iss. 7 — Mar. 30, 2009
  • pp: 5364–5372

Highly efficient blue top-emitting device with phase-shift adjustment layer

Yanlong Meng, Wenfa Xie, Guohua Xie, Letian Zhang, Yi Zhao, Jingying Hou, and Shiyong Liu  »View Author Affiliations

Optics Express, Vol. 17, Issue 7, pp. 5364-5372 (2009)

View Full Text Article

Enhanced HTML    Acrobat PDF (641 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



The phase shift on the reflection from a semitransparent electrode of a top-emitting organic light-emitting device is utilized in this paper to realize a deep blue emission with high efficiency. The phase shift could be adjusted by changing the thickness of Alq3 when it was deposited onto the semitransparent electrode of the device. Through simulation it is found that the blue shift of the resonant wavelength occurs in a certain range, which is concerned with Alq3 thickness and the cavity length between two reflective electrodes. According to the simulation, a blue top-emitting organic light-emitting device with a designed structure was demonstrated experimentally by using such a phase-shift adjustment layer. Finally, the device showed excellent performance both in efficiency (3.4 cd/A at 8 V) and Commission Internationale de l’Eclairage coordinates (0.13, 0.15). The brightness of the device reached 20 000 cd/m2.

© 2009 Optical Society of America

OCIS Codes
(230.0230) Optical devices : Optical devices
(230.3670) Optical devices : Light-emitting diodes
(230.5750) Optical devices : Resonators
(310.0310) Thin films : Thin films
(310.6188) Thin films : Spectral properties
(310.6805) Thin films : Theory and design

ToC Category:
Optical Devices

Original Manuscript: October 27, 2008
Revised Manuscript: December 19, 2008
Manuscript Accepted: December 19, 2008
Published: March 20, 2009

Yanlong Meng, Wenfa Xie, Guohua Xie, Letian Zhang, Yi Zhao, Jingying Hou, and Shiyong Liu, "Highly efficient blue top-emitting device with phase-shift adjustment layer," Opt. Express 17, 5364-5372 (2009)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. C.-W. Chen, C.-L. Lin, and C.-C. Wu, "An effective cathode structure for inverted top-emitting organic light-emitting devices," Appl. Phys. Lett. 85, 2469-2471 (2004). [CrossRef]
  2. C. J. Lee, R. B. Pode, and J. I. Han, "Red electrophosphorescent top emission organic light-emitting device with Ca/Ag semitransparent cathode," Appl. Phys. Lett. 89, 253508 (2006), http://link.aip.org/link/?APPLAB/89/253508/1. [CrossRef]
  3. D. G. Moon, R. B. Pode, C. J. Lee, and J. I. Han, "Efficient red electrophosphorescent top-emitting organic light-emitting devices," Mater. Sci. Eng. B 121, 232-237(2005). [CrossRef]
  4. S. Han, C. Huang, and Z.-H. Lu, "Color tunable metal-cavity organic light-emitting diodes with fullerene layer," J. Appl. Phys. 97, 093102 (2005), http://link.aip.org/link/?JAPIAU/97/093102/1. [CrossRef]
  5. H. J. Peng, J. X. Sun, X. L. Zhu, X. M. Yu, M. Wong, and H. S. Kwok, "High-efficiency microcavity top-emitting organic light-emitting diodes using silver anode," Appl. Phys. Lett. 88, 073517 (2006). [CrossRef]
  6. S.-F. Hsu, C.-C. Lee, S.-W. Hwang, H.-H. Chen, C. H. Chen, and A. T. Hu, "Color-saturated and highly efficient top-emitting organic light-emitting," Thin Solid Films 478, 271-274 (2005). [CrossRef]
  7. S.-F. Hsu, C.-C. Lee, A. T. Hu, and C. H. Chen, "Fabrication of blue top-emitting organic light-emitting devices," Curr. Appl. Phys. 4, 663-666 (2004). [CrossRef]
  8. A. L. Burin and M. A. Ratner, "Exciton migration and cathode quenching in organic light emitting diodes," J. Phys. Chem. A 104, 4704-4710 (2000). [CrossRef]
  9. C. L. Mitsas and D. I. Siapkas, "Generalized matrix method for analysis of coherent and incoherent reflectance and transmittance of multilayer structures with rough surfaces, interfaces, and finite substrates," Appl. Opt. 34, 1678-1683 (1995). [CrossRef] [PubMed]
  10. A. B. Djurišiæ and A. D. Rakiæ, "Organic microcavity light-emitting diodes with metal mirrors: dependence of the emission wavelength on the viewing angle," Appl. Opt. 41, 7650-7656 (2002). [CrossRef]
  11. D. G. Deppe, C. Lei, C. C. Lin, and D. L. Huffaker, "Spontaneous emission from planar microstructures," J. Mod. Opt. 41, 325-344 (1994), http://dx.doi.org/10.1080/09500349414550361. [CrossRef]
  12. S. F. Chen, W. F. Xie, Y. L. Meng, P. Chen, Y. Zhao, and S. Y. Liu, "Effect of 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline outcoupling layer on electroluminescent performances in top-emitting organic light-emitting devices," J. Appl. Phys. 103, 054506 (2008). [CrossRef]
  13. Q1. C.-C. Wu, C.-W. Chen, C.-L. Lin, and C.-J. Yang, "Advanced organic light-emitting devices for enhancing display performances," J. Disp. Technol. 1, 248-265 (2005). [CrossRef]
  14. H. Becker, S. E. Burns, N. Tessler, and R. H. Friend, "Role of optical properties of metallic mirrors in microcavity structures," J. Appl. Phys. 81, 2825-2829 (1997). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited