SIZE EFFECTS IN THE ULTRAFAST ELECTRONIC DYNAMICS OF METALLIC TIN NANOPARTICLES

Authors
STELLA A NISOLI M DESILVESTRI S SVELTO O LANZANI G CHEYSSAC P KOFMAN R
Citation
A. Stella et al., SIZE EFFECTS IN THE ULTRAFAST ELECTRONIC DYNAMICS OF METALLIC TIN NANOPARTICLES, Physical review. B, Condensed matter, 53(23), 1996, pp. 15497-15500
Citations number
29
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
53
Issue
23
Year of publication
1996
Pages
15497 - 15500
Database
ISI
SICI code
0163-1829(1996)53:23<15497:SEITUE>2.0.ZU;2-R
Abstract
We report on femtosecond transient reflectivity measurements performed on metallic tin nanoparticles, embedded in an Al2O3 matrix, with aver age radii in the range 20-60 Angstrom. It was observed that the time b ehavior of the transient reflectivity decays depends upon particle siz e. The results can be interpreted in terms of a size-dependent electro n-surface interaction in the thermalization process and of a substanti ally size-independent electron-electron thermalization.