title: Ultrafast dynamics of single-walled carbon nanotubes dispersed in polymer films.
abstract: Wavelength-resolved femtosecond transient absorption spectroscopy is used to follow the electronic dynamics of single-walled carbon nanotubes in polymers following visible photoexcitation. Electron-hole (e-h) pairs give rise to sharp features in the transient spectra that decay in amplitude and exhibit rapid spectral shifts. The decay reflects (e-h) recombination on both short (1.3 ps) and long (35 ps) time scales. Transient spectra also exhibit a broad photobleach at early times that arises from the cooling of a hot electron gas created via excitation at the red edge of a pi-plasmon band.
authors.forename: David J
authors.initials: DJ
authors.lastname: Styers-Barnett
authors.forename: Stephen P
authors.initials: SP
authors.lastname: Ellison
authors.forename: Cheol
authors.initials: C
authors.lastname: Park
authors.forename: Kristopher E
authors.initials: KE
authors.lastname: Wise
authors.forename: John M
authors.initials: JM
authors.lastname: Papanikolas