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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 35, Iss. 20 — Oct. 15, 2010
  • pp: 3372–3374

Warm-white light-emitting diodes integrated with colloidal quantum dots for high luminous efficacy and color rendering

Sedat Nizamoglu, Talha Erdem, Xiao Wei Sun, and Hilmi Volkan Demir  »View Author Affiliations

Optics Letters, Vol. 35, Issue 20, pp. 3372-3374 (2010)

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Warm-white LEDs (WLEDs) with high spectral quality and efficiency are required for lighting applications, but current experimental performances are limited. We report on nanocrystal quantum dot (NQD) hybridized WLEDs with high performance that exhibit a high luminous efficacy of optical radiation exceeding 350 lm / W opt and a high color rendering index close to 90 at a low correlated color temperature < 3000 K . These spectrally engineered WLEDs are obtained using a combination of CdSe/ZnS core/shell NQD nanophosphors integrated on blue InGaN/GaN LEDs.

© 2010 Optical Society of America

OCIS Codes
(230.3670) Optical devices : Light-emitting diodes
(250.5230) Optoelectronics : Photoluminescence
(160.4236) Materials : Nanomaterials

ToC Category:
Optical Devices

Original Manuscript: June 2, 2010
Revised Manuscript: September 1, 2010
Manuscript Accepted: September 2, 2010
Published: October 8, 2010

Sedat Nizamoglu, Talha Erdem, Xiao Wei Sun, and Hilmi Volkan Demir, "Warm-white light-emitting diodes integrated with colloidal quantum dots for high luminous efficacy and color rendering," Opt. Lett. 35, 3372-3374 (2010)

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