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APS » Journals » Phys. Rev. Lett. » Volume 84 » Issue 20
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Phys. Rev. Lett. 84, 4621–4624 (2000)

Atomic Arrangement of Iodine Atoms inside Single-Walled Carbon Nanotubes

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X. Fan, E. C. Dickey*, P. C. Eklund†, K. A. Williams, L. Grigorian‡, R. Buczko§, S. T. Pantelides, and S. J. Pennycook
1Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506
2Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
3Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506
4Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235

Received 9 November 1999; published in the issue dated 15 May 2000

We report atomic resolution Z-contrast scanning transmission electron microscopy images that reveal the incorporation of I atoms in the form of helical chains inside single-walled carbon nanotubes. Density functional calculations and topological considerations provide a consistent interpretation of the experimental data. Charge transfer between the nanotube walls and the I chains is associated with the intercalation.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.84.4621
DOI:
10.1103/PhysRevLett.84.4621
PACS:
61.72.Ss, 61.16.Bg, 61.48.+c

*To whom correspondence should be addressed. Electronic address: ecdickey@engr.uky.edu

†Current address: 104 Davey Laboratory, The Pennsylvania State University, University Park, PA 16802-6300.

‡Current address: Fundamental Research Lab, Honda R&D Americas, Inc., 100 Town Center, Suite 2050, Southfield, MI 48075.

§Permanent address: Institute of Physics, Polish Academy of Sciences, 02-668, Warsaw, Poland.

 
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