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

研究成果: 雜誌貢獻期刊論文同行評審

37 引文 斯高帕斯(Scopus)

摘要

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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頁(從 - 到)11441-11450
頁數10
期刊Optics Express
19
發行號12
DOIs
出版狀態已出版 - 6 6月 2011

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