Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 191, Issue -, Pages 595-599Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2013.09.088
Keywords
Fractal-like nanostructure; SEF; SERRS; Surface plasmon resonance
Funding
- National Science Foundation of China [11174190, 11304247]
- Fundamental Research Funds for the Central Universities [GK201101006]
- Natural Science Basis Research Plan in Shaanxi Province of China [2013JM1008]
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The effective enhancement substrate with fractal-like nano structure was fabricated with silver nanoparticle clusters through electrochemical reduction method. Surface enhanced spectroscopy, including surface enhanced resonance Raman scattering and surface enhanced fluorescence, was detected simultaneously from Rh6G molecules on the prepared substrates. Furthermore, several non-resonant molecules, such as malachite green (MG) and p-aminothiophenol (PATP), were also selected to study the enhanced effect of the fabricated substrate. The simulation results reveal that intense electromagnetic (EM) field distribution were formed in silver fractal nano structure when the external laser beam illuminate on. It shows that the fractal-like substrate is efficient to boost Raman and fluorescence signals, which make the substrate unique for obtaining Raman and fluorescence enhancement simultaneously. (C) 2013 Elsevier B.V. All rights reserved.
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