Ultrafast time-resolved photoluminescence from novel metal-dendrimer nanocomposites

Authors
Varnavski, O Ispasoiu, RG Balogh, L Tomalia, D Goodson, T
Citation
O. Varnavski et al., Ultrafast time-resolved photoluminescence from novel metal-dendrimer nanocomposites, J CHEM PHYS, 114(5), 2001, pp. 1962-1965
Citations number
24
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF CHEMICAL PHYSICS
ISSN journal
00219606 → ACNP
Volume
114
Issue
5
Year of publication
2001
Pages
1962 - 1965
Database
ISI
SICI code
0021-9606(20010201)114:5<1962:UTPFNM>2.0.ZU;2-Y
Abstract
We report the first results of ultra-fast enhanced light emission from gold - and silver-dendrimer nanocomposites. There is a fast (70 fs) fluorescence decay component associated with the metal nanocomposites. Anisotropy measu rements show that this fast component is depolarized. The enhanced emission is suggestively due to local field enhancement in the elongated metal-dend rimer nanoparticles. (C) 2001 American Institute of Physics.