OSA's Digital Library

Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 15 — Aug. 1, 2013
  • pp: 2885–2888

Color-converting bilayered composite plate of quantum-dot–polymer for high-color rendering white light-emitting diode

Jong-Hoon Kim, Woo-Seuk Song, and Heesun Yang  »View Author Affiliations

Optics Letters, Vol. 38, Issue 15, pp. 2885-2888 (2013)

View Full Text Article

Enhanced HTML    Acrobat PDF (680 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



Highly bright CuInS2 quantum dots (QDs), whose emission is easily tuned in orange and greenish-yellow colors through manipulating the ZnS shelling procedure, are integrated with polymethyl methacrylate (PMMA) to obtain a free-standing composite plate of QD-polymer. The composite plate embedded with orange or greenish-yellow QDs is combined in a remote type with a blue light-emitting diode (LED). No color rendering index (CRI) value results when orange QDs are applied, whereas use of greenish-yellow QDs leads to a limited CRI of 72. A higher-color rendering QD-LED is demonstrated through a spectral extension by devising a unique bilayer-structured QD plate, where two types of QD are separately incorporated into each PMMA matrix, with a buffer layer of polymer blend inserted between them. The bilayered QD plate LED exhibits an improved CRI of 81, a high luminous efficacy of 71.2lm/W at an input current of 20 mA, and exceptional high-stability luminescent characteristics against the variation of applied current.

© 2013 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 7, 2013
Revised Manuscript: July 5, 2013
Manuscript Accepted: July 5, 2013
Published: July 30, 2013

Jong-Hoon Kim, Woo-Seuk Song, and Heesun Yang, "Color-converting bilayered composite plate of quantum-dot–polymer for high-color rendering white light-emitting diode," Opt. Lett. 38, 2885-2888 (2013)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. E. Jang, S. Jun, H. Jang, J. Lim, B. Kim, and Y. Kim, Adv. Mater. 22, 3076 (2010). [CrossRef]
  2. J. Y. Woo, K. Kim, S. Jeong, and C. S. Han, J. Phys. Chem. C 115, 20945 (2011). [CrossRef]
  3. S. Jun, J. Lee, and E. Jang, ACS Nano 7, 1472 (2013). [CrossRef]
  4. H. Woo, J. Lim, Y. Lee, J. Sung, H. Shin, J. M. Oh, M. Choi, H. Yoon, W. K. Bae, and K. Char, J. Mater. Chem. C 1, 1983 (2013). [CrossRef]
  5. J. Ziegler, S. Xu, E. Kucur, F. Meister, M. Batentschuk, F. Gindele, and T. Nann, Adv. Mater. 20, 4068 (2008). [CrossRef]
  6. K. Kim, S. Jeong, J. Y. Woo, and C. S. Han, Nanotechnology 23, 065602 (2012). [CrossRef]
  7. S. Kim, T. Kim, M. Kang, S. K. Kwak, T. W. Yoo, L. S. Park, I. Yang, S. Hwang, J. E. Lee, S. K. Kim, and S. W. Kim, J. Am. Chem. Soc. 134, 3804 (2012). [CrossRef]
  8. E. Mutlugun, P. L. Hernandez-Martinez, C. Eroglu, Y. Coskun, T. Erdem, V. K. Sharma, E. Unal, S. K. Panda, S. G. Hickey, N. Gaponik, A. Eychmuller, and H. V. Demir, Nano Lett. 12, 3986 (2012). [CrossRef]
  9. W. S. Song and H. Yang, Chem. Mater. 24, 1961 (2012). [CrossRef]
  10. E. P. Jang, W. S. Song, K. H. Lee, and H. Yang, Nanotechnology 24, 045607 (2013). [CrossRef]
  11. W. S. Song, J. H. Kim, J. H. Lee, H. S. Lee, Y. R. Do, and H. Yang, J. Mater. Chem. 22, 21901 (2012). [CrossRef]
  12. S. Chandramohan, B. D. Ryu, H. K. Kim, C. H. Hong, and E. K. Suh, Opt. Lett. 36, 802 (2011). [CrossRef]
  13. M. Uehara, K. Watanabe, Y. Tajiri, H. Nakamura, and H. Maeda, J. Chem. Phys. 129, 134709 (2008). [CrossRef]
  14. L. Li, A. Pandey, D. J. Werder, B. P. Khanal, J. M. Pietryga, and V. I. Klimov, J. Am. Chem. Soc. 133, 1176 (2011). [CrossRef]
  15. H. Kim, H. S. Jang, B. H. Kwon, M. Suh, Y. Kim, S. H. Cheong, and D. Y. Jeon, Electrochem. Solid-State Lett. 15, K16 (2012). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


Fig. 1. Fig. 2. Fig. 3.
Fig. 4.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited