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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 21 — Jul. 20, 2010
  • pp: 4024–4028

Solution-processed photonic crystals to enhance the light outcoupling efficiency of organic light-emitting diodes

Hwan-Hee Cho, Boik Park, Hyong-Jun Kim, Sohee Jeon, Jun-ho Jeong, and Jang-Joo Kim  »View Author Affiliations


Applied Optics, Vol. 49, Issue 21, pp. 4024-4028 (2010)
http://dx.doi.org/10.1364/AO.49.004024


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Abstract

We report an effective solution process to fabricate planarized photonic crystal substrates to enhance the outcoupling efficiency of organic light-emitting diodes (OLEDs). The photonic crystal structure was fabricated using nanoimprint lithography using a UV-curable acrylate and was planarized by using a ZnO layer formed by the solgel process. The solgel process resulted in a smooth surface, and OLEDs have been successfully integrated on the planarized photonic crystal layer with a low leakage current. The resulting light outcoupling efficiency was enhanced by 38% compared with that of conventional OLEDs, which is well matched with a theoretical prediction.

© 2010 Optical Society of America

OCIS Codes
(160.6060) Materials : Solgel
(230.3670) Optical devices : Light-emitting diodes
(110.4235) Imaging systems : Nanolithography
(160.5298) Materials : Photonic crystals

ToC Category:
Optoelectronics

History
Original Manuscript: March 19, 2010
Revised Manuscript: May 13, 2010
Manuscript Accepted: May 28, 2010
Published: July 15, 2010

Citation
Hwan-Hee Cho, Boik Park, Hyong-Jun Kim, Sohee Jeon, Jun-ho Jeong, and Jang-Joo Kim, "Solution-processed photonic crystals to enhance the light outcoupling efficiency of organic light-emitting diodes," Appl. Opt. 49, 4024-4028 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-21-4024


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References

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