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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 10 — Apr. 1, 2013
  • pp: 1992–1997

Characterization of surface modified ZnCuInS2 nanocrystals and its application to white light-emitting diodes

Hyunchul Jung, Wonkeun Chung, Chang Hun Lee, and Sung Hyun Kim  »View Author Affiliations

Applied Optics, Vol. 52, Issue 10, pp. 1992-1997 (2013)

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Red-emitting ZnCuInS2 semiconductor nanocrystals (NCs) were synthesized and surface modification was performed on the NCs with oleylamine, trioctylphosphine, and 3-mercaptopropionic acid by the ligand exchange strategy. UV–visible spectroscopy, photoluminescence (PL) spectroscopy, time-resolved PL analysis, and attenuated total reflection Fourier transform infrared spectroscopy were used to verify the surface modification of NCs. Additionally, white light-emitting diodes (LEDs) were fabricated using surface modified red-emitting ZnCuInS2 NCs as red phosphor to compensate for the deficiency of red emission in white LEDs, consisting of blue LEDs as excitation sources and YAG:Ce as yellow phosphor.

© 2013 Optical Society of America

OCIS Codes
(230.3670) Optical devices : Light-emitting diodes
(300.6280) Spectroscopy : Spectroscopy, fluorescence and luminescence
(240.6675) Optics at surfaces : Surface photoemission and photoelectron spectroscopy

ToC Category:

Original Manuscript: January 25, 2013
Revised Manuscript: February 28, 2013
Manuscript Accepted: February 28, 2013
Published: March 21, 2013

Hyunchul Jung, Wonkeun Chung, Chang Hun Lee, and Sung Hyun Kim, "Characterization of surface modified ZnCuInS2 nanocrystals and its application to white light-emitting diodes," Appl. Opt. 52, 1992-1997 (2013)

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  1. L. L. Peng, Y. H. Wang, and C. Y. Li, “Ultraviolet-blue photoluminescence of ZnSe quantum dots,” J. Nanosci. Nanotechnol. 10, 2113–2118 (2010). [CrossRef]
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