Green synthesis and electrophoretic deposition of Ag nanoparticles on SiO2/Si(100)
ENNAS, GUIDO;
2013-01-01
Abstract
Plasmonic substrates were prepared by electrophoretic deposition of Ag nanoparticles on SiO2/Si(100). The Ag nanoparticles were obtained using TAg.NH3/2U C as the Ag precursor and D-glucose as the reducing agent. Under optimized conditions, this simple and green synthesis method furnished a suspension of Ag nanoparticles with a narrow dimensional dispersion (centered around 27 nm) and a negative z-potential, suitable for electrophoretic deposition. Samples were chemically, optically and morphologically characterized by photoemission and UV–vis spectroscopy and electron microscopy, and tested as substrates for surface enhanced Raman spectroscopy. Despite being a very simple procedure, good enhancement factors were measured thanks to the formation of hot spots, formed by sandwiching the analyte (benzenethiol) between sequentially deposited Ag nanoparticlesFile | Size | Format | |
---|---|---|---|
NAnotechnology .pdf Solo gestori archivio
Type: versione editoriale
Size 1.45 MB
Format Adobe PDF
|
1.45 MB | Adobe PDF | & nbsp; View / Open Request a copy |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.