期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 171, 期 -, 页码 705-711出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2012.05.060
关键词
Inkjet printing; SERS; Silicon substrate; Silver nanoparticles; Heavy metal compounds
资金
- US Army [WS911QY-07-1-0003, W911NF-09-C-0135]
A novel surface enhanced Raman spectroscopy (SERS) substrate was successfully fabricated on a silicon wafer using inkjet printing. Silver (Ag) nanoparticle (NP) based ink, with average particle size of 150 nm, was inkjet printed on the surface of the silicon wafer. A thickness of 400 nm was measured for the printed Ag NP film using vertical scanning interferometry. The Ag NP printed SERS substrate was tested toward heavy metal compounds like cadmium sulfide (CdS), zinc oxide (ZnO) and mercury sulfide (HgS). An amplification of the SERS intensity by an order of 3-5 times was observed for all test samples, due to the presence of hotspots between the metal nanoparticle aggregates. The responses demonstrated the feasibility of the novel SERS substrate to be used in applications for detection of heavy metal compounds. (C) 2012 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据