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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 5 — Mar. 7, 2005
  • pp: 1598–1603

Nanohole-templated organic light-emitting diodes fabricated using laser-interfering lithography: moth-eye lighting

Yoon-Chang Kim and Young Rag Do  »View Author Affiliations

Optics Express, Vol. 13, Issue 5, pp. 1598-1603 (2005)

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We describe the architecture, fabrication, and electro-optical characteristics of a two-dimensional (2D), periodic, highly ordered array of subwavelength scale organic light-emitting diodes (OLEDs). A 2D nanohole array template was introduced onto a patterned ITO glass substrate by two-step irradiated hologram lithography and reactive ion etching, and then a 2D nanohole OLED array was prepared by following typical OLED fabrication procedures. Our analysis of the electro-optical characteristics of this device showed that shrinking the OLEDs to sub-wavelength scale has only a minimal effect on their optical properties. We also used the Bragg scattering effect to confirm the compounding of the millions of ~220 nm OLED light sources to form 2D periodic nanohole emission by comparing the angular dependence of the emission spectrum of the OLED array with that of a conventional OLED.

© 2005 Optical Society of America

OCIS Codes
(230.3670) Optical devices : Light-emitting diodes
(230.3990) Optical devices : Micro-optical devices

ToC Category:
Research Papers

Original Manuscript: December 6, 2004
Revised Manuscript: February 23, 2005
Published: March 7, 2005

Yoon-Chang Kim and Young Rag Do, "Nanohole-templated organic light-emitting diodes fabricated using laser-interfering lithography: moth-eye lighting," Opt. Express 13, 1598-1603 (2005)

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