Name
Title | ||
|---|---|---|
Silver nanoparticles aggregate on passivated copper foil for Surface-enhanced Raman scattering |
Abstract | ||
|---|---|---|
Surface-enhanced Raman scattering (SERS), as a powerful tool of chemical and biological analysis, has been investigated extensively in recent years. In this work, the reduction of silver nitrate by copper foil in aqueous medium was used to prepare silver nanoparticles and a method of applying ultrasonic to passivate the copper foil in the sulfuric acid solution was proposed in order to regulate the deposition of the Ag nanoparticles. Analysis of the surface structure by a fieldemission scanning electron microscope (FESEM) revealed that the silver nanoparticles deposited on the passivated copper foil were more regular. SERS spectra of Rhodamine6G (R6G) adsorbed on these Ag-Cu substrates were studied and compared. It's found that the Ag-Cu substrate prepared with the Cu foil passivated by ultrasonic treatment has a significantly higher Raman signal sensitivity, better large-area uniformity, and 80% of original sensitivity was remained in 10 days of storage time in the air, indicating the substrates are fairly stable. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.1109/NEMS.2013.6559780 | NEMS |
Keywords | Field | DocType |
silver nanoparticles aggregate,ultrasonic treatment,nanoparticles,fesem,nanofabrication,passivated copper foil,aqueous medium,silver nanoparticles,large-area uniformity,copper,adsorption,surface enhanced raman scattering,silver,surface-enhanced raman scattering,dyes,sers spectra,ag-cu,surface structure,rhodamine6g,foils,ultrasonic applications,aggregation,copper foil,silver nitrate reduction,field emission electron microscopy,passivation,storage time,field emission scanning electron microscopy,substrates,sulfuric acid solution,ultrasonic,scanning electron microscopy,silver nitrate,raman signal sensitivity,raman scattering,acoustics | FOIL method,Analytical chemistry,Scanning electron microscope,Silver nitrate,Silver nanoparticle,Raman scattering,Raman spectroscopy,Materials science,Nanoparticle,Copper | Conference |
Volume | Issue | ISSN |
null | null | null |
ISBN | Citations | PageRank |
978-1-4673-6351-8 | 0 | 0.34 |
References | Authors | |
0 | 5 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Zuojun Zhang | 1 | 0 | 0.34 |
| Li Chen | 2 | 5 | 0.78 |
| Gang Chen | 3 | 0 | 0.34 |
| Chunhong Lai | 4 | 0 | 0.34 |
| Hui Zhou | 5 | 0 | 0.68 |