Sub-10 fs excited state evolution in polycarbazolyldiacetylene-polyethylene blends

Authors
Cerullo, G Lanzani, G Zavelani-Rossi, M De Silvestri, S Comoretto, D Moggio, I Dellepiane, G
Citation
G. Cerullo et al., Sub-10 fs excited state evolution in polycarbazolyldiacetylene-polyethylene blends, SYNTH METAL, 116(1-3), 2001, pp. 57-60
Citations number
10
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SYNTHETIC METALS
ISSN journal
03796779 → ACNP
Volume
116
Issue
1-3
Year of publication
2001
Pages
57 - 60
Database
ISI
SICI code
0379-6779(20010115)116:1-3<57:SFESEI>2.0.ZU;2-F
Abstract
We report on sub-10 femtosecond time-resolved optical dynamics in polycarba zolyldiacetylene blended in a polyethylene matrix which is a prototype of s ingle chain systems. Transmission difference data reveal an ultrafast kinet ics which is assigned to the rapid internal conversion taking place followi ng photoexcitation. Oscillations in the time-dependent traces are assigned to impulsive stimulated resonant Raman scattering, based on the comparison with cw Raman data. (C) 2001 Elsevier Science B.V. All rights reserved.