Fabrication of 2D metal nanoparticle array encapsulated by anodic aluminum oxide and its applications to surface-enhanced Raman scattering

Chen Han Huang, Hsing Ying Lin

研究成果: 書貢獻/報告類型會議論文篇章同行評審

1 引文 斯高帕斯(Scopus)

摘要

This paper describes the verification of a reproducible, highly sensitive, robust, and reliable SERS active substrate that is composed of periodic silver nanoparticle arrays encapsulated within large-area (1 in 2) anodic aluminum oxide films. The well-organized spherical silver nanoparticles are electro-deposited at the interior bottom of alumina nanochannels. After chemically removing the residual aluminum, the exposed bottom alumina layer can be adopted as a sensitive SERS sensor but can avoid the oxidation and sulfidation corrosion of embedded silver. The encapsulated nanoparticle arrays provide strong and reproducible SERS signals of probe R6G and adenine molecules. The shelf life of the single-process fabricated SERS substrate is examined and over two months with repeatable SERS measurements and reproducible SERS signals. Avoiding the complicated and more expensive vacuum deposition process, the cost-effective and single electrochemical process fabricated SERS active substrate which can retain the most compromise Raman enhancing power and repeatable uses for at least two months is a promising sensor for a variety of practical applications.

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主出版物標題Third Asia Pacific Optical Sensors Conference
DOIs
出版狀態已出版 - 2012
事件3rd Asia Pacific Optical Sensors Conference - Sydney, NSW, Australia
持續時間: 31 1月 20123 2月 2012

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
8351
ISSN(列印)0277-786X

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???event.eventtypes.event.conference???3rd Asia Pacific Optical Sensors Conference
國家/地區Australia
城市Sydney, NSW
期間31/01/123/02/12

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