Excitons at the B K edge of boron nitride nanotubes probed by x-ray absorption spectroscopy (Articolo in rivista)

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Label
  • Excitons at the B K edge of boron nitride nanotubes probed by x-ray absorption spectroscopy (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1088/0953-8984/22/29/295301 (literal)
Alternative label
  • Pacilé D., Papagno M., Skála T., Matolín V., Sainsbury T., Ikuno T., Okawa D., Zettl A., Prince K.C. (2010)
    Excitons at the B K edge of boron nitride nanotubes probed by x-ray absorption spectroscopy
    in Journal of physics. Condensed matter (Print); IOP Publishing Ltd., Bristol BS1 6BE (Regno Unito)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Pacilé D., Papagno M., Skála T., Matolín V., Sainsbury T., Ikuno T., Okawa D., Zettl A., Prince K.C. (literal)
Pagina inizio
  • 295301 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 22 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • http://dx.doi.org/10.1088/0953-8984/22/29/295301 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Istituto Nazionale di Fisica Nucleare (INFN) and Dipartimento di Fisica Università della Calabria, 87036 Arcavacata di Rende, Cosenza, Italy Istituto di Struttura della Materia-Consiglio Nazionale delle Ricerche, Basovizza, Trieste, Italy Sincrotrone Trieste, Strada Statale 14, km 163.5, 34149 Basovizza-Trieste, Italy Charles University, Faculty of Mathematics and Physics, V Holesovickách 2, 18000 Prague 8, Czech Republic Department of Physics, University of California, Berkeley, CA 94720, USA Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA (literal)
Titolo
  • Excitons at the B K edge of boron nitride nanotubes probed by x-ray absorption spectroscopy (literal)
Abstract
  • We have performed a near-edge x-ray absorption fine-structure (NEXAFS) investigation of multi-walled boron nitride nanotubes (BNNTs). We show that the one-dimensionality of BNNTs is clearly evident in the B K edge spectrum, while the N K edge spectrum is similar to that of layered hexagonal BN (h-BN). We observe a sharp feature at the Ã* onset of the B K edge, which we ascribe to a core exciton state. We also report a comparison with spectra taken after an ammonia plasma treatment, showing that the B K edge becomes indistinguishable from that of h-BN, due to the breaking of the tubular order and the formation of small h-BN clusters. (literal)
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