Communication

Solving Efficiency–Stability Tradeoff in Top-Emitting Organic Light-Emitting Devices by Employing Periodically Corrugated Metallic Cathode

  1. Yu Jin1,
  2. Jing Feng1,*,
  3. Xu-Lin Zhang1,
  4. Yan-Gang Bi1,
  5. Yu Bai1,
  6. Lu Chen1,
  7. Tian Lan1,
  8. Yue-Feng Liu1,
  9. Qi-Dai Chen1,
  10. Hong-Bo Sun1,2,*

Article first published online: 26 JAN 2012

DOI: 10.1002/adma.201103397

Issue

Advanced Materials

Advanced Materials

Volume 24, Issue 9, pages 1187–1191, March 2, 2012

Additional Information

How to Cite

Jin, Y., Feng, J., Zhang, X.-L., Bi, Y.-G., Bai, Y., Chen, L., Lan, T., Liu, Y.-F., Chen, Q.-D. and Sun, H.-B. (2012), Solving Efficiency–Stability Tradeoff in Top-Emitting Organic Light-Emitting Devices by Employing Periodically Corrugated Metallic Cathode. Adv. Mater., 24: 1187–1191. doi: 10.1002/adma.201103397

Author Information

  1. 1

    State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China

  2. 2

    College of Physics, Jilin University, 119 Jiefang Road, Changchun, 130023, P. R. China

*State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China.

Publication History

  1. Issue published online: 24 FEB 2012
  2. Article first published online: 26 JAN 2012
  3. Manuscript Received: 3 SEP 2011

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Keywords:

  • top-emitting organic light-emitting devices;
  • surface-plasmon polaritons;
  • periodic corrugation
Thumbnail image of graphical abstract

The introduction of a periodic corrugation into TOLEDs is demonstrated to be effective in relieving the tradeoff between device stability and efficiency, through the cross coupling of the SPPs associated with the Ag cathode and the microcavity modes. The thickness of the Ag cathode for the corrugated TOLEDs was increased from 20 to 45 nm, and both the device lifetime and efficiency are significantly improved. The figure shows a schematic cross section of a red TOLED with periodic microstructure and an operating TOLED with both corrugated and planar area.

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