Transient reflectivity on vertically aligned single-wall carbon nanotubes (Articolo in rivista)

Type
Label
  • Transient reflectivity on vertically aligned single-wall carbon nanotubes (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.tsf.2013.02.133 (literal)
Alternative label
  • Gianluca Galimberti, Stefano Ponzoni, Gabriele Ferrini, Stephan Hofmann, Muhammad Arshad, Cinzia Cepek, Stefania Pagliara (2013)
    Transient reflectivity on vertically aligned single-wall carbon nanotubes
    in Thin solid films (Print); Elsevier Sequoia, Lausanne (Svizzera)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Gianluca Galimberti, Stefano Ponzoni, Gabriele Ferrini, Stephan Hofmann, Muhammad Arshad, Cinzia Cepek, Stefania Pagliara (literal)
Rivista
Note
  • Scopus (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Gianluca Galimberti a, Stefano Ponzoni a, Gabriele Ferrini a, Stephan Hofmann b, Muhammad Arshad c d e, Cinzia Cepek f, Stefania Pagliara a a Interdisciplinary Laboratory for Advanced Materials Physics (i-LAMP) and Dipartimento di Matematica e Fisica, Università Cattolica del Sacro Cuore, I-25121 Brescia, Italy b Department of Engineering, University of Cambridge, Cambridge CB3 0FA, UK c Zernike Institute for Advanced Materials, University of Groningen, The Netherlands d ICTP, Strada Costiera 11, I-34151 Trieste, Italy e National Centre for Physics Quaid-i-Azam University Islamabad, Pakistan f Istituto Officina dei Materiali -- CNR, Laboratorio TASC, Area Science Park, Basovizza, I-34149 Trieste, Italy (literal)
Titolo
  • Transient reflectivity on vertically aligned single-wall carbon nanotubes (literal)
Abstract
  • One-color transient reflectivity measurements are carried out on two different samples of vertically aligned single-wall carbon nanotube bundles and compared with the response recently published on unaligned bundles. The negative sign of the optical response for both samples indicates that the free electron character revealed on unaligned bundles is only due to the intertube interactions favored by the tube bending. Neither the presence of bundles nor the existence of structural defects in aligned bundles is able to induce a free-electron like behavior of the photoexcited carriers. This result is also confirmed by the presence of non-linear excitonic effects in the transient response of the aligned bundles. (literal)
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