title: Phonon-assisted excitonic recombination channels observed in DNA-wrapped carbon nanotubes using photoluminescence spectroscopy.
abstract: By using a sample of DNA-wrapped single-wall carbon nanotubes strongly enriched in the (6,5) nanotube, photoluminescence emissions observed at special excitation energy values were identified with specific mechanisms of phonon-assisted excitonic absorption and recombination processes associated with (6,5) nanotubes, including one-phonon, two-phonon, and some continuous-luminescence processes. Such detailed processes are not separately identified in three-dimensional semiconducting materials. A general theoretical framework is presented to interpret the experimentally observed phonon-assisted processes in terms of excitonic states.
authors.affiliation: Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA.
authors.forename: S G
authors.initials: SG
authors.lastname: Chou
authors.forename: F
authors.initials: F
authors.lastname: Plentz
authors.forename: J
authors.initials: J
authors.lastname: Jiang
authors.forename: R
authors.initials: R
authors.lastname: Saito
authors.forename: D
authors.initials: D
authors.lastname: Nezich
authors.forename: H B
authors.initials: HB
authors.lastname: Ribeiro
authors.forename: A
authors.initials: A
authors.lastname: Jorio
authors.forename: M A
authors.initials: MA
authors.lastname: Pimenta
authors.forename: Ge G
authors.initials: GG
authors.lastname: Samsonidze
authors.forename: A P
authors.initials: AP
authors.lastname: Santos
authors.forename: M
authors.initials: M
authors.lastname: Zheng
authors.forename: G B
authors.initials: GB
authors.lastname: Onoa
authors.forename: E D
authors.initials: ED
authors.lastname: Semke
authors.forename: G
authors.initials: G
authors.lastname: Dresselhaus
authors.forename: M S
authors.initials: MS
authors.lastname: Dresselhaus
mesh_terms: D004247:DNA / Q000737:chemistry*; D008163:Luminescent Measurements / Q000379:methods*; D037742:Nanotubes, Carbon / Q000737:chemistry*
chemical_list: D037742:Nanotubes, Carbon; D004247:DNA