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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 12 — Jun. 6, 2011
  • pp: 11441–11450

Electrochemically fabricated self-aligned 2-D silver/alumina arrays as reliable SERS sensors

Chen-Han Huang, Hsing-Ying Lin, Shihtse Chen, Chih-Yi Liu, Hsiang-Chen Chui, and Yonhua Tzeng  »View Author Affiliations

Optics Express, Vol. 19, Issue 12, pp. 11441-11450 (2011)

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A novel SERS sensor for adenine molecules is fabricated electrochemically using an ordered two-dimensional array of self-aligned silver nanoparticles encapsulated by alumina. Silver is electro-deposited on the interior surfaces at the bottom of nano-channels in a porous anodic aluminum oxide (AAO) film. After etching aluminum, the back-end alumina serves as a SERS substrate. SERS enhancement factor greater than 106 is measured by 532 nm illumination. It exhibits robust chemical stability and emits reproducible Raman signals from repetitive uses for eight weeks. The inexpensive mass production process makes this reliable, durable and sensitive plasmon based optical device promising for many applications.

© 2011 OSA

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(220.4241) Optical design and fabrication : Nanostructure fabrication
(250.5403) Optoelectronics : Plasmonics
(310.6628) Thin films : Subwavelength structures, nanostructures
(240.6695) Optics at surfaces : Surface-enhanced Raman scattering

ToC Category:

Original Manuscript: April 11, 2011
Revised Manuscript: May 26, 2011
Manuscript Accepted: May 26, 2011
Published: May 27, 2011

Chen-Han Huang, Hsing-Ying Lin, Shihtse Chen, Chih-Yi Liu, Hsiang-Chen Chui, and Yonhua Tzeng, "Electrochemically fabricated self-aligned 2-D silver/alumina arrays as reliable SERS sensors," Opt. Express 19, 11441-11450 (2011)

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