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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 24 — Nov. 23, 2009
  • pp: 22223–22234

Optical and electrical properties of Au nanoparticles in two-dimensional networks: an effective cluster model

Huimin Su, Yingshun Li, Xiao-Yuan Li, and Kam Sing Wong  »View Author Affiliations

Optics Express, Vol. 17, Issue 24, pp. 22223-22234 (2009)

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We report a study of the optical and electric properties of Au nanoparticle networks grown on the porous alumina membrane by dry atom sputtering deposition approach. An effective cluster model was developed to evaluate the dielectric function and the electrical conductivities of the nanoparticle networks by taking into account the effects of the Au particle size, the Au volume fraction, and the particle-particle interaction. The calculated transmission spectra from the model were in good agreement with the experimental data. The percolation threshold of the as-fabricated structure was predicted to occur at Au volume fraction of 0.18, consistent with the dc electric resistance measurement.

© 2009 OSA

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(260.3910) Physical optics : Metal optics
(260.2065) Physical optics : Effective medium theory

ToC Category:
Physical Optics

Original Manuscript: September 22, 2009
Revised Manuscript: November 11, 2009
Manuscript Accepted: November 11, 2009
Published: November 19, 2009

Huimin Su, Yingshun Li, Xiao-Yuan Li, and Kam Sing Wong, "Optical and electrical properties of Au nanoparticles in two-dimensional networks:
an effective cluster model," Opt. Express 17, 22223-22234 (2009)

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