Size control of Ag nanoparticles for SERS sensing applications

 
This item is provided by the institution :
Technological Educational Institute of Athens
Repository :
Ypatia - Institutional Repository
see the original item page
in the repository's web site and access all digital files if the item*
share




2011 (EN)
Size control of Ag nanoparticles for SERS sensing applications (EN)

Παντίσκος, Ν. (EL)
Μπούκος, Νίκος (EL)
Φωτόπουλος, Π. (EL)
Παναγοπούλου, Μ. (EL)
Μεϊντάνης, Ν. (EL)

Τεχνολογικό Εκπαιδευτικό Ίδρυμα Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Ηλεκτρονικών Μηχανικών Τ.Ε. (EL)

Ag nanoparticles developed by inert gas aggregation were deposited on silicon and quartz substrates. The samples were annealed under high vacuum at 200C. The influence of annealing time-length on the average size and size dispersion was examined by field emission scanning electron microscopy and UV-visible absorption spectra. The results showed that the average size of the nanoparticles decreased continuously for annealing time up to 6mins followed by a more tight size distribution. After further annealing the average size increased again approaching the average size of the nanoparticles in the non-annealed sample. The samples prepared were tested as substrates for SERS of R6G molecules adsorbed on the Ag nanoparticles. It was found that the characteristic 612cm-1 rhodamine peak followed the variation of the average nanoparticle size. (EN)

journalArticle

Plasmons (Physics) (EN)
silver nanoparticles (EN)
νανοσωματίδια αργύρου (EN)
SERS (EN)
αντίστροφη ωρίμανση Ostwald (EN)
inverse Ostwald ripening (EN)

ΤΕΙ Αθήνας (EL)
Technological Educational Institute of Athens (EN)

Procedia Engineering (EN)

English

2011

DOI: 10.1016/j.proeng.2011.12.069

N/A (EN)



*Institutions are responsible for keeping their URLs functional (digital file, item page in repository site)