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      https://www.ias.ac.in/article/fulltext/pram/042/05/0375-0385

    • Keywords

       

      Nanoparticles; tubule; graphite; Raman spectroscopy

    • Abstract

       

      The structure of multilayered carbon tubules has been investigated by electron microscopy and X-ray diffraction. The structure of tubules is characterized by disorder in the stacking of cylindrical graphene sheets. Raman scattering measurements have been carried out in tubules and compared with graphite. The observed features in the Raman spectra in tubules can be understood in terms of the influence of disorder. The additional Raman modes predicted for single layer carbon tubules have not been observed.

    • Author Affiliations

       

      N Chandrabhas1 A K Sood1 2 D Sundararaman3 S Raju3 V S Raghunathan3 GVN Rao4 V S Sastry4 T S Radhakrishnan4 Y Hariharan4 A Bharathi4 C S Sundar4

      1. Department of Physics, Indian Institute of Science, Bangalore - 560 012, India
      2. Jawaharlal Nehru Centre for Advanced Scientific Research, IISc Campus, Bangalore - 560 012, India
      3. Metallurgy Division, Indira Gandhi Centre for Atomic Research, Kalpakkam - 603 102, India
      4. Materials Science Division, Indira Gandhi Centre for Atomic Research, Kalpakkam - 603 102, India

    • Dates

       
      Published
      May 1994
      Manuscript received
      11 February 1994
      Manuscript revised
      6 April 1994

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