Carbon nanotube arrays

  • S. S. Xie
  • W. Z. Li
  • Z. W. Pan
  • B. H. Chang
  • L. F. Sun
Conference paper


Carbon nanotube arrays were prepared by chemical vapor deposition (CM) of hydrocarbon gas on various substrates. The effect of substrates on the growth, morphology and structure of carbon na.notubes were investigated. Aligned carbon nanotubes with high density and purity were achieved by CVD on bulk silica substrate. On the film-like substrates, very long carbon nanotubes of length ~ 2 mm were produced, which is an order of magnitude longer (1 mm vs. 100 μm) than that described in most previous reports. High-resolution transmission electron microscopy (FIRTEM) investigation illustrates that these carbon nanotubes are well graphitized and very pure. The tubes are typically consist of several to tens of concentric shells of carbon sheets with spacing about 0.34 rim. Micro-Raman spectroscopy has been carried out to detect the microstruCtures of CNT. The observed ratio of the integrated intensity of D and G band was found different from that of carbon nanotubes produced by arc-discharge method and pyrolytic graphite (PG), The resonance properties and higher order Raman bands are also different from other forms of carbon. With the help of the results of SEM and FIRTEM the origination of the broader band structure were discussed.


68.65.+g Low dimensional structures (superlattices, quantum well structures, niultilayers): structure, and nanoelectronic properties 81.15.Gh Chemical vapor deposition (including plasma-enhanced CVD, MOCVD etc.) 81.20.1Fw Sol-gel processing, precipitation 61.16.Bg Transmission, reflection and scanning electron microscopy (including EBIC) 


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Copyright information

© Springer-Verlag Italia 1999

Authors and Affiliations

  • S. S. Xie
    • 1
  • W. Z. Li
    • 1
  • Z. W. Pan
    • 1
  • B. H. Chang
    • 1
  • L. F. Sun
    • 1
  1. 1.Institute of Physics & Center for Condensed Matter PhysicsChinese Academy of SciencesBeijingP.R. China

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