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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 2 — Jan. 27, 2014
  • pp: 1815–1823

Low driving voltage blue, green, yellow, red and white organic light-emitting diodes with a simply double light-emitting structure

Zhensong Zhang, Shouzhen Yue, Yukun Wu, Pingrui Yan, Qingyang Wu, Dalong Qu, Shiyong Liu, and Yi Zhao  »View Author Affiliations


Optics Express, Vol. 22, Issue 2, pp. 1815-1823 (2014)
http://dx.doi.org/10.1364/OE.22.001815


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Abstract

Low driving voltage blue, green, yellow, red and white phosphorescent organic light-emitting diodes (OLEDs) with a common simply double emitting layer (D-EML) structure are investigated. Our OLEDs without any out-coupling schemes as well as n-doping strategies show low driving voltage, e.g. < 2.4 V for onset and < 3 V for 1000 cd/m2, and high efficiency of 32.5 lm/W (13.3%), 58.8 lm/W (14.3%), 55.1 lm/W (14.6%), 24.9 lm/W (13.7%) and 45.1 lm/W (13.5%) for blue, green, yellow, red and white OLED, respectively. This work demonstrates that the low driving voltages and high efficiencies can be simultaneously realized with a common simply D-EML structure.

© 2014 Optical Society of America

OCIS Codes
(230.3670) Optical devices : Light-emitting diodes
(250.0250) Optoelectronics : Optoelectronics

ToC Category:
Optoelectronics

History
Original Manuscript: August 26, 2013
Revised Manuscript: November 12, 2013
Manuscript Accepted: December 19, 2013
Published: January 21, 2014

Citation
Zhensong Zhang, Shouzhen Yue, Yukun Wu, Pingrui Yan, Qingyang Wu, Dalong Qu, Shiyong Liu, and Yi Zhao, "Low driving voltage blue, green, yellow, red and white organic light-emitting diodes with a simply double light-emitting structure," Opt. Express 22, 1815-1823 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-2-1815


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