Journal of Materials Science

, Volume 45, Issue 19, pp 5318–5322 | Cite as

An X-ray absorption approach to mixed and metallicity-sorted single-walled carbon nanotubes

  • Paola Ayala
  • Hidetsugu Shiozawa
  • Katrien De Blauwe
  • Yasumitsu Miyata
  • Rolf Follath
  • Hiromichi Kataura
  • Thomas Pichler
Article

Abstract

Carbon based structures have been widely studied by X-ray absorption (XAS), also called NEXAFS, which is a very useful bulk probing method that allows examining the unoccupied density of states (DOS) and the site selective bonding environment. Two very well known spectral features in the XAS core level spectrum are the σ* and π* bands, and both have been analyzed in several studies for graphitic-like systems. However, among all the carbon materials, the unique one-dimensional electronic properties attributed to single-walled carbon nanotubes (SWCNTs) exhibit features that reveal clearly their electronic structure in the core level XAS spectrum. In this article, we outline the C1s response in XAS, which is related to the DOS of the conduction band in SWCNTs and its fine structure, revealed by experiments performed on metallicity-sorted SWCNT material. The progress in the identification of changes in the site selective conduction band electronic structure with XAS is discussed in detail.

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Paola Ayala
    • 1
  • Hidetsugu Shiozawa
    • 2
  • Katrien De Blauwe
    • 1
  • Yasumitsu Miyata
    • 3
  • Rolf Follath
    • 4
  • Hiromichi Kataura
    • 5
    • 6
  • Thomas Pichler
    • 1
  1. 1.Faculty of PhysicsUniversity of ViennaViennaAustria
  2. 2.Advanced Technology InstituteUniversity of SurreyGuildfordUK
  3. 3.Department of ChemistryUniversity of NagoyaNagoyaJapan
  4. 4.BESSY IIBerlinGermany
  5. 5.Nanotechnology Research InstituteNational Institute of Advanced Industrial Science and TechnologyTsukubaJapan
  6. 6.JST, CRESTKawaguchiJapan

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