ISSN:
1434-6036
Keywords:
PACS. 81.05.Ys Nanophase materials - 78.40.Fy Semiconductors - 78.40.Ha Other nonmetallic inorganics
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: A modification of the polyol process has enabled the direct synthesis of nm-sized Ag particles with narrow size distribution and controlled average dimension embedded in a polymeric matrix. Dispersion of colloidal silver was obtained by reduction of silver nitrate in ethylene-glycol in the presence of a polymeric protective agent (i.e., poly(N-vinylpyrrolidone)) and ultrasounds. The final particle size was controlled by removing the colloid from the reactive mixture by addition of acetone. The very strong plasmon resonance peak at 410 nm and a feature at 350 nm in the UV-visible spectra are a clear consequence of the nano-size of dilute Ag particles. The proposed process offers the possibility to effectively use these synthesised materials for the production of colour filters for advanced optical devices.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100510070243
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