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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 31 — Nov. 1, 2011
  • pp: G137–G141

White light-emitting diode coated with ZnSe:Mn/ZnSe nanocrystal films enveloped by SiO 2

Boping Yang, Jiayu Zhang, Yiping Cui, and Kai Wang  »View Author Affiliations


Applied Optics, Vol. 50, Issue 31, pp. G137-G141 (2011)
http://dx.doi.org/10.1364/AO.50.00G137


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Abstract

Mn-doped nanocrystals (NCs) have attracted much attention for their excellent properties. In our work, colloidal Mn-doped NCs with high quantum yield are synthesized and enveloped with silica hydrosol. The blend of NCs and silica hydrosol is coated on a blue light-emitting diode (LED), and the appropriate thickness of the NC film is found. White light is gained through the mix of the blue emission of the LED and the orange emission from Mn-doped NC films. The chromaticity coordinates and the image of the white LED indicate that Mn-doped NCs can be a good substitute for YAG:Ce phosphor, and the reliability of the white LED can be improved by enveloping NCs with SiO 2 .

© 2011 Optical Society of America

OCIS Codes
(160.4236) Materials : Nanomaterials
(310.6845) Thin films : Thin film devices and applications

History
Original Manuscript: June 29, 2011
Revised Manuscript: September 24, 2011
Manuscript Accepted: October 12, 2011
Published: October 26, 2011

Citation
Boping Yang, Jiayu Zhang, Yiping Cui, and Kai Wang, "White light-emitting diode coated with ZnSe:Mn/ZnSe nanocrystal films enveloped by SiO2," Appl. Opt. 50, G137-G141 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-31-G137


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