title: Exciton energy transfer in pairs of single-walled carbon nanotubes.
abstract: We studied the exciton energy transfer in pairs of semiconducting nanotubes using high-resolution optical microscopy and spectroscopy on the nanoscale. Photoluminescence from large band gap nanotubes within bundles is observed with spatially varying intensities due to distance-dependent internanotube transfer. The range of efficient energy transfer is found to be limited to a few nanometers because of competing fast nonradiative relaxation responsible for low photoluminescence quantum yield.
authors: Department Chemie and Biochemie and CeNS, Ludwig-Maximilians-Universität München, 81377 München, Germany.
authors: Huihong
authors: H
authors: Qian
authors: Carsten
authors: C
authors: Georgi
authors: Neil
authors: N
authors: Anderson
authors: Alexander A
authors: AA
authors: Green
authors: Mark C
authors: MC
authors: Hersam
authors: Lukas
authors: L
authors: Novotny
authors: Achim
authors: A
authors: Hartschuh
mesh_terms: D003198:Computer Simulation; D003460:Crystallization / Q000379:methods*; D004579:Electron Transport; D004735:Energy Transfer; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008956:Models, Chemical; D008968:Molecular Conformation; D036103:Nanotechnology / Q000379:methods*; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size
chemical_list: D046911:Macromolecular Substances; D037742:Nanotubes, Carbon