OSA's Digital Library

Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 34, Iss. 13 — Jul. 1, 2009
  • pp: 2078–2080

Large enhancement of light-extraction efficiency from optically pumped, nanorod light-emitting diodes

Mei-Ling Kuo, Ya-Ju Lee, Thomas C. Shen, and Shawn-Yu Lin  »View Author Affiliations


Optics Letters, Vol. 34, Issue 13, pp. 2078-2080 (2009)
http://dx.doi.org/10.1364/OL.34.002078


View Full Text Article

Enhanced HTML    Acrobat PDF (328 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We report a threefold enhancement of light-emission intensity at λ = 460 nm and a 16-fold extraction-efficiency enhancement measured from a 2D array of nanorod LEDs. The nano-LEDs are randomly arranged and have a typical rod diameter of 100 250 nm . From a combination of photoluminescence, reflectance, and excitation power-dependence measurements, we show that the enhanced emission is due mainly to modification of the extraction efficiency, and not to that of the internal efficiency. Furthermore, we show that the extraction enhancement originates from the randomness of the 2D array that scatters light efficiently into the air and the smallness of the nanorods that eliminates the guiding modes that trap light.

© 2009 Optical Society of America

OCIS Codes
(130.0250) Integrated optics : Optoelectronics
(230.3670) Optical devices : Light-emitting diodes

ToC Category:
Optoelectronics

History
Original Manuscript: April 6, 2009
Revised Manuscript: June 1, 2009
Manuscript Accepted: May 8, 2009
Published: June 30, 2009

Citation
Mei-Ling Kuo, Ya-Ju Lee, Thomas C. Shen, and Shawn-Yu Lin, "Large enhancement of light-extraction efficiency from optically pumped, nanorod light-emitting diodes," Opt. Lett. 34, 2078-2080 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-13-2078

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited