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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 3 — Feb. 1, 2010
  • pp: 2309–2316

Particle size dependence of the dynamic photophysical properties of NaYF4:Yb, Er nanocrystals

Shuang Fang Lim, William S. Ryu, and Robert H. Austin  »View Author Affiliations

Optics Express, Vol. 18, Issue 3, pp. 2309-2316 (2010)

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The effects of the nanocrystal size on the emission spectra and decay rates of upconverting hexagonal NaYF4:Yb,Er nanocrystals are investigated. The influence of nanocrystal size is represented in terms of the surface area/volume ratio (SA/Vol). Our results show that a small nanocrystal size, or large SA/Vol ratio increases the decay rate, in particular, the green luminescence decay rate varies linearly with the SA/Vol ratio.

© 2010 OSA

OCIS Codes
(160.0160) Materials : Materials
(160.2540) Materials : Fluorescent and luminescent materials
(190.0190) Nonlinear optics : Nonlinear optics
(190.4180) Nonlinear optics : Multiphoton processes

ToC Category:

Original Manuscript: October 26, 2009
Revised Manuscript: December 14, 2009
Manuscript Accepted: December 15, 2009
Published: January 21, 2010

Shuang Fang Lim, William S. Ryu, and Robert H. Austin, "Particle size dependence of the dynamic photophysical properties of NaYF4:Yb, Er nanocrystals," Opt. Express 18, 2309-2316 (2010)

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