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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 8 — Apr. 9, 2012
  • pp: 9122–9134

Optimal spectra of white light-emitting diodes using quantum dot nanophosphors

Ping Zhong, Guoxing He, and Minhao Zhang  »View Author Affiliations


Optics Express, Vol. 20, Issue 8, pp. 9122-9134 (2012)
http://dx.doi.org/10.1364/OE.20.009122


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Abstract

The relationship and trade-offs between the performance parameters including color rendering index (CRI), luminous efficacy of radiation (LER) and correlated color temperature (CCT) of white LEDs using quantum dot nanophosphors (QD-WLEDs) are investigated for CRI ≥ 80 and LER ≥ 300 lm/W at 1500 K ≤ CCT ≤ 6500 K. The optimal spectra of QD-WLEDs with CCTs of 2700–6500 K have been obtained with a nonlinear program for maximizing LER under conditions of both CRI and a special CRI of R9 strong red above 90 or 95. Furthermore, high performance QD-WLEDs with LER = 381 lm/W for CRI = R9 = 90 and LER = 371 lm/W for CRI = R9 = 95 at CCT = 3000 K, with LER = 361 lm/W for CRI = R9 = 90 and LER = 352 lm/W for CRI = R9 = 95 at CCT = 4500 K, and with LER = 346 lm/W for CRI = R9 = 90 and LER = 338 lm/W for CRI = R9 = 95 at CCT = 5700 K could be achieved. The LERs of high performance white LEDs using QD nanophosphors increase by 13% to 32% compared with that of white LEDs using traditional phosphors.

© 2012 OSA

OCIS Codes
(230.3670) Optical devices : Light-emitting diodes
(230.5590) Optical devices : Quantum-well, -wire and -dot devices
(250.0250) Optoelectronics : Optoelectronics
(330.1715) Vision, color, and visual optics : Color, rendering and metamerism

ToC Category:
Optical Devices

History
Original Manuscript: January 31, 2012
Revised Manuscript: March 14, 2012
Manuscript Accepted: March 27, 2012
Published: April 4, 2012

Virtual Issues
Vol. 7, Iss. 6 Virtual Journal for Biomedical Optics

Citation
Ping Zhong, Guoxing He, and Minhao Zhang, "Optimal spectra of white light-emitting diodes using quantum dot nanophosphors," Opt. Express 20, 9122-9134 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-8-9122


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References

  1. E. F. Schubert and J. K. Kim, “Solid-state light sources getting smart,” Science308(5726), 1274–1278 (2005). [CrossRef] [PubMed]
  2. E. F. Schubert, Light Emitting Diodes (Cambridge University Press, 2006).
  3. International Commission on Illumination, Method of Measuring and Specifying Colour Rendering Properties of Light Sources (Commission Internationale de l'Éclairage, 1995).
  4. S. V. Gaponenko, Introduction to Nanophotonics (Cambridge University Press, 2010).
  5. V. L. Colvin, M. C. Schlamp, and A. P. Alivisatos, “Light-emitting diodes made from cadmium selenide nanocrystals and a semiconducting polymer,” Nature370(6488), 354–357 (1994). [CrossRef]
  6. C. B. Murray, C. R. Kagan, and M. G. Bawendi, “Synthesis and characterization of monodisperse nanocrystals and close-packed nanocrystal assemblies,” Annu. Rev. Mater. Sci.30(1), 545–610 (2000). [CrossRef]
  7. R. Osovsky, D. Cheskis, V. Kloper, A. Sashchiuk, M. Kroner, and E. Lifshitz, “Continuous-wave pumping of multiexciton bands in the photoluminescence spectrum of a single CdTe-CdSe core-shell colloidal quantum dot,” Phys. Rev. Lett.102(19), 197401 (2009). [CrossRef] [PubMed]
  8. T. Erdem, S. Nizamoglu, X. W. Sun, and H. V. Demir, “A photometric investigation of ultra-efficient LEDs with high color rendering index and high luminous efficacy employing nanocrystal quantum dot luminophores,” Opt. Express18(1), 340–347 (2010). [CrossRef] [PubMed]
  9. T. Erdem, S. Nizamoglu, and H. V. Demir, “Computational study of power conversion and luminous efficiency performance for semiconductor quantum dot nanophosphors on light-emitting diodes,” Opt. Express20(3), 3275–3295 (2012). [CrossRef] [PubMed]
  10. S. Nizamoglu, T. Erdem, X. W. Sun, and H. V. Demir, “Warm-white light-emitting diodes integrated with colloidal quantum dots for high luminous efficacy and color rendering,” Opt. Lett.35(20), 3372–3374 (2010). [CrossRef] [PubMed]
  11. G. X. He, “Warm-white light-emitting diodes integrated with colloidal quantum dots for high luminous efficacy and color rendering: comment,” Opt. Lett.36(15), 2851, discussion 2852 (2011). [CrossRef] [PubMed]
  12. ENERGY STAR for SSL Luminaries ver. 1.1, 2008.
  13. American National Standard, Specifications for the Chromaticity of Solid State Lighting Products (ANSI C78.377), NEMA, 2008.
  14. N. Narendran and L. Deng, “Color rendering properties of LED light sources,” Proc. SPIE4776, 61–67 (2002). [CrossRef]
  15. N. Sándor and J. Schanda, “Visual colour rendering based on colour difference evaluations,” Lighting Res. Tech.38(3), 225–239 (2006). [CrossRef]
  16. K. Hashimoto and Y. Nayatani, “Visual clarity and feeling of contrast,” Color Res. Appl.19(3), 171–185 (1994). [CrossRef]
  17. J. Worthey, “Color rendering: asking the questions,” Color Res. Appl.28(6), 403–412 (2003). [CrossRef]
  18. W. Davis and Y. Ohno, “Color quality scale,” Opt. Eng.49(3), 033602 (2010). [CrossRef]
  19. Y. Ohno and W. Davis, “Rationale of color quality scale,” (2010): http://www.digikey.com/us/en/techzone/lighting/resources/articles/rationale-of-color-quality-scale.html .
  20. S. Nizamoglu, T. Erdem, X. W. Sun, and H. V. Demir, “Warm-white light-emitting diodes integrated with colloidal quantum dots for high luminous efficacy and color rendering: reply to comment,” Opt. Lett.36(15), 2852 (2011). [CrossRef]
  21. J. M. Phillips, M. F. Coltrin, M. H. Crawford, A. J. Fischer, M. R. Krames, R. Mueller-Mach, G. O. Mueller, Y. Ohno, L. E. S. Rohwer, J. A. Simmons, and J. Y. Tsao, “Research challenges to ultra-efficient inorganic solid state lighting,” Laser Photon. Rev.1(4), 307–333 (2007). [CrossRef]
  22. S. J. Rosenthal, “Bar-coding biomolecules with fluorescent nanocrystals,” Nat. Biotechnol.19(7), 621–622 (2001). [CrossRef] [PubMed]
  23. I. Moreno and U. Contreras, “Color distribution from multicolor LED arrays,” Opt. Express15(6), 3607–3618 (2007). [CrossRef] [PubMed]
  24. C. A. C. Coello and G. B. Lamont, Applications of Multi-Objective Evolutionary Algorithms (World Scientific, 2004).
  25. A. Konak, D. Coit, and A. Smith, “Multi-objective optimization using genetic algorithms: a tutorial,” Reliab. Eng. Syst. Saf.91(9), 992–1007 (2006). [CrossRef]
  26. H. Eskandari and C. D. Geiger, “A fast Pareto genetic algorithm approach for solving expensive multiobjective optimization problems,” J. Heuristics14(3), 203–241 (2008). [CrossRef]
  27. K. Deb, A. Pratap, S. Agarwal, and T. Meyarivan, “A fast and elitist multiobjective genetic algorithm: NSGA-II,” IEEE Trans. Evol. Comput.6(2), 182–197 (2002). [CrossRef]
  28. G. X. He and H. F. Yan, “Optimal spectra of the phosphor-coated white LEDs with excellent color rendering property and high luminous efficacy of radiation,” Opt. Express19(3), 2519–2529 (2011). [CrossRef] [PubMed]

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