Surface-enhanced Raman scattering substrate of silver nanoparticles depositing on AAO template fabricated by magnetron sputtering

被引：67

作者：

Nuntawong, Noppadon ^{[1
]}

Horprathum, Mati ^{[1
]}

Eiamchai, Pitak ^{[1
]}

Wong-ek, Krongkamol ^{[2
]}

Patthanasettakul, Viyapol ^{[1
]}

Chindaudom, Pongpan ^{[1
]}

机构：

[1] Natl Elect & Comp Technol, Photon Technol Lab, Pathum Thani, Thailand

[2] Chulalongkorn Univ, Nanosci & Technol Program, Bangkok, Thailand

来源：

VACUUM | 2010年 / 84卷 / 12期

关键词：

Silver nanoparticles; Raman scattering; SERS; Magnetron sputtering; AAO; Sensor; ARRAYS;

D O I：

10.1016/j.vacuum.2009.12.020

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this report, we describe a fabrication process of low-cost and highly sensitive SERS substrates by using a simple anodizing setup and a low-energy magnetron sputtering method. The structure of the SERS substrates consists of silver nanoparticles deposited on a layer of anodic aluminum oxide (AAO) template. The fabricated SERS substrates are investigated by a scanning electron microscope (SEM), a transmission electron microscope (TEM), and a confocal Raman spectroscope. We have verified from the surface morphology that the fabricated SERS substrates consist of high-density round-shape silver nanoparticles where their size distribution ranges from 10 to 30 nm on the top and the bottom of nanopores. The surface-enhanced Raman scattering activities of these nanostructures are demonstrated using methylene blue (MB) as probing molecules. The detection limit of 10(-8) M can be achieved from this SERS substrate. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1415 / 1418

页数：4

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