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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 10 — May. 15, 2013
  • pp: 1742–1744

Angle-stable RGBW top-emitting organic light-emitting devices with Ag/Ge/Ag cathode

Shihao Liu, Jian Liu, Xuemei Wen, Yang Liu, Zhaoying Chen, Yongming Yin, Letian Zhang, and Wenfa Xie  »View Author Affiliations

Optics Letters, Vol. 38, Issue 10, pp. 1742-1744 (2013)

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Ag/Ge/Ag (AGA) is investigated as a transparent cathode for top-emitting organic light-emitting devices (TEOLEDs). TEOLEDs of different colors with excellent performances can be gained by simply adopting a corresponding emitting layer, without changing the thickness of the device and cathode. Especially, the blue and white TEOLEDs exhibit high efficiency as well as the bottom OLEDs and show an excellently angle-stable characteristic. The white TEOLED exhibits a maximum current efficiency of 12.4cd/A, and the CIE coordinates at 6 V only shift by (0.048, 0.046) from 0° to 60°. It can be attributed to the less angle-dependent cavity emission of the TEOLED with AGA cathode.

© 2013 Optical Society of America

OCIS Codes
(050.2230) Diffraction and gratings : Fabry-Perot
(230.3670) Optical devices : Light-emitting diodes
(240.0310) Optics at surfaces : Thin films

ToC Category:
Optical Devices

Original Manuscript: March 11, 2013
Revised Manuscript: April 10, 2013
Manuscript Accepted: April 19, 2013
Published: May 15, 2013

Shihao Liu, Jian Liu, Xuemei Wen, Yang Liu, Zhaoying Chen, Yongming Yin, Letian Zhang, and Wenfa Xie, "Angle-stable RGBW top-emitting organic light-emitting devices with Ag/Ge/Ag cathode," Opt. Lett. 38, 1742-1744 (2013)

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