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Energy Express

  • Editor: Bernard Kippelen
  • Vol. 19, Iss. S4 — Jul. 4, 2011
  • pp: A657–A663

Alloy nanoparticle plasmon resonance for enhancing broadband antireflection of laser-textured silicon surfaces

Lanying Yang, Xiong Li, Xianguo Tuo, Thanh Thi Van Nguyen, Xiangang Luo, and Minghui Hong  »View Author Affiliations

Optics Express, Vol. 19, Issue S4, pp. A657-A663 (2011)

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In this paper, Ag-Au alloy nanoparticles (NPs) were fabricated by dewetting process to enhance the broadband antireflection performance of textured silicon surfaces. The alloy NPs presented a large range of shapes and sizes, which provided an average reflectance (AR) below 4% over the spectral range of 300~1200 nm, a decrease of ~50% and ~90% as compared to the corresponding monometallic NPs and the original flat Si surfaces, respectively. The superior broadband antireflection demonstrated by the alloy NPs are attributed to the enhanced light trapping by alloy nanoparticle plasmon resonance.

© 2011 OSA

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(310.1210) Thin films : Antireflection coatings
(350.3390) Other areas of optics : Laser materials processing
(350.4238) Other areas of optics : Nanophotonics and photonic crystals

ToC Category:
Thin Films

Original Manuscript: February 10, 2011
Revised Manuscript: May 7, 2011
Manuscript Accepted: May 9, 2011
Published: May 16, 2011

Lanying Yang, Xiong Li, Xianguo Tuo, Thanh Thi Van Nguyen, Xiangang Luo, and Minghui Hong, "Alloy nanoparticle plasmon resonance for enhancing broadband antireflection of laser-textured silicon surfaces," Opt. Express 19, A657-A663 (2011)

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