Reversible Intercalation of Charged Iodine Chains into Carbon Nanotube Ropes

L. Grigorian; K. A. Williams; S. Fang; G. U. Sumanasekera; A. L. Loper; E. C. Dickey; S. J. Pennycook; P. C. Eklund

doi:10.1103/PhysRevLett.80.5560

Reversible Intercalation of Charged Iodine Chains into Carbon Nanotube Ropes

L. Grigorian, K. A. Williams, S. Fang, G. U. Sumanasekera, A. L. Loper, E. C. Dickey, S. J. Pennycook, and P. C. Eklund

Phys. Rev. Lett. 80, 5560 – Published 22 June 1998

Abstract

We report intercalation of charged polyiodide chains into the interstitial channels in a single-wall carbon nanotube (SWNT) rope lattice, suggesting a new carbon chemistry for nanotubes, distinctly different from that of graphite and $C_{60}$ . This structural model is supported by results from Raman spectroscopy, x-ray diffraction, $Z$ -contrast electron microscopy, and electrical transport data. Iodine-doped SWNTs are found to be air stable, permitting the use of a variety of techniques to explore the effect of charge transfer on the physical properties of these novel quantum wires.

Received 16 March 1998

DOI:https://doi.org/10.1103/PhysRevLett.80.5560

Authors & Affiliations

L. Grigorian^1,2, K. A. Williams¹, S. Fang^1,2, G. U. Sumanasekera¹, A. L. Loper¹, E. C. Dickey³, S. J. Pennycook⁴, and P. C. Eklund^1,2

¹Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506
²Center for Applied Energy Research, University of Kentucky, 2540 Research Park Drive, Lexington, Kentucky 40511
³Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506
⁴Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831