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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 17 — Aug. 21, 2006
  • pp: 7954–7959

Contrast and efficiency enhancement in organic light-emitting devices utilizing high absorption and high charge mobility organic layers

W. F. Xie, Y. Zhao, C. N. Li, and S. Y. Liu  »View Author Affiliations


Optics Express, Vol. 14, Issue 17, pp. 7954-7959 (2006)
http://dx.doi.org/10.1364/OE.14.007954


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Abstract

Organic light-emitting devices utilizing copper phthalocyanine (CuPc) and C60 as the hole- and electron-injection layers were reported. Compared with a conventional device without CuPc and C60 layers, the improvement of the contrast is more than 100% under 140-lx ambient lighting at a brightness of 300 cd/m2. A maximum current efficiency of 3.93 cd/A, which is higher than 3.62 cd/A for a conventional device, was obtained at 9 V. The device has a maximum luminance of 17170 cd/m2 at 15 V. The high contrast and high efficiency of the device are attributed to the high absorption and high charge mobility of CuPc and C60 films.

© 2006 Optical Society of America

OCIS Codes
(160.4890) Materials : Organic materials
(230.3670) Optical devices : Light-emitting diodes

ToC Category:
Optical Devices

History
Original Manuscript: March 30, 2006
Revised Manuscript: July 11, 2006
Manuscript Accepted: July 17, 2006
Published: August 21, 2006

Citation
W. F. Xie, Y. Zhao, C. N. Li, and S. Y. Liu, "Contrast and efficiency enhancement in organic light-emitting devices utilizing high absorption and high charge mobility organic layers," Opt. Express 14, 7954-7959 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-17-7954


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