title: Photoluminescence from intertube carrier migration in single-walled carbon nanotube bundles.
abstract: Photoluminescence (PL) identifies spectroscopic signatures of intertube transfer of optically pumped carriers in single-walled carbon nanotube (SWNT) ensembles. Resonant photoexcitation of large band gap SWNTs produces strong PL from smaller band gap SWNTs. Magnetic alignment measurements associate the energy-transfer PL peaks with the formation of SWNT bundles, suggesting that efficient coupling results from physical contact.
authors.affiliation: Department of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, Pennsylvania 19104, USA.
authors.forename: O N
authors.initials: ON
authors.lastname: Torrens
authors.forename: D E
authors.initials: DE
authors.lastname: Milkie
authors.forename: M
authors.initials: M
authors.lastname: Zheng
authors.forename: J M
authors.initials: JM
authors.lastname: Kikkawa
mesh_terms: D004247:DNA / Q000737:chemistry*; D049449:Luminescence; D008280:Magnetics; D009038:Motion; D037742:Nanotubes, Carbon / Q000737:chemistry*; D014867:Water / Q000737:chemistry
chemical_list: D037742:Nanotubes, Carbon; D014867:Water; D004247:DNA