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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 31 — Nov. 1, 2009
  • pp: 5889–5896

Improvement of the light extraction efficiency of top-emitting organic light-emitting diodes by a two-dimensional diffraction layer fabricated using self-assembled nanoparticles

Tsutomu Nakanishi, Toshiro Hiraoka, Akira Fujimoto, Shigeru Matake, Satoshi Okutani, Hiroshi Sano, and Koji Asakawa  »View Author Affiliations


Applied Optics, Vol. 48, Issue 31, pp. 5889-5896 (2009)
http://dx.doi.org/10.1364/AO.48.005889


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Abstract

The light extraction efficiency of top-emitting organic light-emitting diodes (OLEDs) was improved by insertion of a two-dimensional (2D) diffraction layer. The 2D diffraction layer was fabricated by our original nanofabrication technique, the embedded particle monolayer method, which could form a self-assembled particle monolayer. As a result, the electroluminescence intensity of the device with the 2D diffraction layer was improved by 1.67 times (in total luminous flux) and 2.07 times (in peak wavelength). High luminance top-emitting OLEDs were fabricated using the potentially low-cost self-assembling technique.

© 2009 Optical Society of America

OCIS Codes
(230.3670) Optical devices : Light-emitting diodes
(220.4241) Optical design and fabrication : Nanostructure fabrication
(050.6624) Diffraction and gratings : Subwavelength structures

ToC Category:
Optical Devices

History
Original Manuscript: July 15, 2009
Revised Manuscript: October 3, 2009
Manuscript Accepted: October 6, 2009
Published: October 20, 2009

Citation
Tsutomu Nakanishi, Toshiro Hiraoka, Akira Fujimoto, Shigeru Matake, Satoshi Okutani, Hiroshi Sano, and Koji Asakawa, "Improvement of the light extraction efficiency of top-emitting organic light-emitting diodes by a two-dimensional diffraction layer fabricated using self-assembled nanoparticles," Appl. Opt. 48, 5889-5896 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-31-5889

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