DIRECT OBSERVATION OF C-60 EXCITON

Authors
EBBESEN TW MOCHIZUKI Y TANIGAKI K HIURA H
Citation
Tw. Ebbesen et al., DIRECT OBSERVATION OF C-60 EXCITON, Europhysics letters, 25(7), 1994, pp. 503-508
Citations number
33
Categorie Soggetti
Physics
Journal title
Europhysics letters → ACNP
ISSN journal
02955075
Volume
25
Issue
7
Year of publication
1994
Pages
503 - 508
Database
ISI
SICI code
0295-5075(1994)25:7<503:DOOCE>2.0.ZU;2-2
Abstract
Photoexcitation of pure C60 thin films by picosecond absorption spectr oscopy reveals a transient species with absorption maxima at 540 nm an d 660 nm which is assigned to the exciton. Considering the dynamic beh aviour of this species and luminescence properties of solid C60, it is concluded that a singlet exciton is observed both in its free (tau1/2 < 15 ps) and self-trapped (tau1/2 = 250 ns) forms.