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; Yonhua Tzeng

doi:10.1364/OE.19.011441

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, Yonhua Tzeng

Research output: Contribution to journal › Article › peer-review

37 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	11441-11450
Number of pages	10
Journal	Optics Express
Volume	19
Issue number	12
DOIs	https://doi.org/10.1364/OE.19.011441
Publication status	Published - 2011 Jun 6

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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10.1364/OE.19.011441

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abstract = "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.",

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AU - Huang, Chen Han

AU - Lin, Hsing Ying

AU - Chen, Shihtse

AU - Liu, Chih Yi

AU - Chui, Hsiang Chen

AU - Tzeng, Yonhua

PY - 2011/6/6

Y1 - 2011/6/6

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AB - 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.

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

Abstract

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